Kate Bosworth accompanied Michael Polish to his 30th high school reunion in September 2018 at Roseville, CA, USA’s Roseville High School.

Sylvia Young Theatre School alum Emma Bunton went back to her former school while in London, England, UK in September 2018.

Jessica Alba and daughter Honor Warren “had an awesome cooking lesson” in August 2018 at Florence, Italy’s MaMa Florence cookings school — they made and got to enjoy a “Sage and butter sauce with our homemade spinach ricotta ravioli.”

Gabrielle Union checked into Changsha, China’s Yuelu Academy in July 2018.

Rebecca Gayheart brought her daughters to “fashion camp” at Los Angeles, CA, USA’s THE UNINCORPORATED LIFE art school in June 2018.

Katy Perry came to Oxford, England, UK’s Harris Manchester College, Oxford in June 2018 and said, “inquisitive minds want to know.”

Dartmouth College alum Mindy Kaling stopped by her old Hanover, NH, USA stomping grounds in June 2018 and said, “Oh heyyyy old dorm room.”

Gwyneth Paltrow “went to my old stomping ground” — the University of California, Santa Barbara, where she did a short stint studying Anthropology — “for a special screening” of The Royal Tenenbaums in May 2018.

In March 2018, Kate Walsh passed by Tucson, AZ, USA’s Doolen Middle School and called it, “My middle school, aka where I feathered my hair for the 1st time.”

“Killing time before meeting at my alma mater” is what Beth Behrs said when she was outside of Royce Hall on the University of California, Los Angeles campus in February 2018.

Monique Coleman counted her “blessings on blessings on blessings” in February 2018 while lighting a candle inside the church on the University of Notre Dame campus in Notre Dame, ID, USA.

Gwyneth Paltrow took a “field trip” to Pasadena, CA, USA’s California Institute of Technology in February 2018.

JoAnna Garcia Swisher said she, Parkersburg High School alumni Nick Swisher, and friends were “Taking our place on the ‘Senior Steps'” in January 2018 and added, “We clearly are feeling ourselves.”

Milo Ventimiglia posted a picture in January 2018 from his visit to the  Armour J. Blackburn University Center.

Whitney Port attended “Mommy class” at LOOM in December 2017.

Tiffani Thiessen enjoyed an “amazing dinner” with friends at Ocean View Farms in October 2017 and joked, “You say mole…I say lick the plate.”

Katy Perry said Savannah College of Art and Design is home to the “coolest coffee shop” when she was here in October 2017.

Gabrielle Union stood beside the February One Monument of “The Greensboro 4” on the at North Carolina A&T State University campus in September 2017.

Loyola Marymount University alum Beverley Mitchell “Went back to where it all began” in August 2017 and said, “#LMU #college 16 years ago! And now running through the campus as a family! Pretty cool!”

During some “#ColoradoPlayTime” in July 2017, Kate Hudson hit up Aspen Dirtbike School with Danny Fujikawa and said she was “Takin the ole’ saying couples who play together stay together up a notch.”

Mayim Bialik had an “#existential” experience after stopping by Taras Shevchenko National University in June 2017, saying, “When the building you took a selfie in front of posts your selfie on Instagram.”

“Let’s go back in time” is what Becky G said when she went by Oak Street Elementary School in June 2017.

In June 2017, Keke Palmer shared a video from her role as Chilli in CrazySexyCool: The TLC Story and revealed, “I remember when I did this for the talent show at” St. Benedict School. She added, it was “a real dream to actually portray the beautiful Chilli, an honor.”

“Feeling inspired walking through the @Harvard campus” is what “Life long learner” LL Cool J said in June 2017. He added, “Dreams don’t have deadlines.”

Over Memorial Day weekend in May 2017, Ian Ziering had a “Great day building skills on a dirt bike” thanks to Coach2Ride.

Former Stanford University student Reese Witherspoon stopped Hoover Tower when she was on campus in May 2017 and shared, “Surprise! While re-visiting @Stanford, I popped by my old dorm room…. and met its newest tenant.”

T.I. was with “My Young Gunnaz at Howard Univ. Campus” in May 2017.

Jerry O’Connell brought his daughters to WeVillage Flexible Childcare, Los Angeles in April 2017 to hear Henry Winkler do a “sweet reading of his Children’s Book HERE’S HANK.”

“Date Night involved what else…PIZZA” is what Catherine Giudici said while tossing some dough in the air during an April 2017 cooking class at Sur La Table, Knox District with Sean Lowe — she added, “#myitalianisshowing.”

In April 2017, Kristi Yamaguchi shared a shot of her daughters’ “Pua cake creation done @duffscakemix.”

Mark Ballas sat on the steps of Italia Conti Academy of Theatre Arts in March 2017 and said, “Where it all began.”

“Let’s see how these soufflés come out” is what Danielle Jonas said when she took a cooking class at Kings Cooking Studio for a friend’s birthday in March 2017.

Bryan Greenberg was “Exploring the genius of Frank Lloyd Wright’s winter home and school” — Taliesin West — in February 2017.

Eddie Cibrian said he “Enjoyed a 4 hour culinary knife skills class with my boy and Chef Cecilia” at Academy of Culinary Education in February 2017 and explained that there was “#lotsofcuting” but “#noblood.”

Tamera Mowry attended her husband’s alumni baseball game for the twelfth time at the school’s Eddy D. Field Stadium in February 2017 and said, “Can’t believe we have two children watching now!!! This man loves the game . . . He was amazing.”

Ciara attended a University of Washington women’s basketball game against Stanford here in January 2017 and cheered, “Go Cardinal.”

“Greatest day of my life” is what Chris Hemsworth said about making a shot from across the court while playing basketball at New Mexico Institute of Mining and Technology in January 2017.

Emily Maynard enjoyed “such a fun night” at Chef Alyssa’s Kitchen in January 2017 and asked, “Should I be offended my husband wants to sign me up for weekly cooking classes?

Ricky Martin explored the University of Monterrey campus in November 2016.

Juliette Lewis was “Celebrating the holidays w some good ole fashion wreath making” at Makers Mess in November 2016.

Bill Rancic was on campus at Yale University in November 2016 and joked, “I have a Meeting today to discuss early admission for the 2030 school year! Lol.”

Former Minot State University quarterback Josh Duhamel hit the field here in October 2016 and said, “So great to see my boys from the ’92 Minot State football team. We’re in the Beaver Hall of Fame baby!!”

Naomi Watts said that artwork by Hugo Guinness, Liz Markus, and Sebastian Blanck were just “A few of my favorites” from her visit here in October 2016.

Rumer Willis said she was “Living my dreams” in October 2016 when she took a tour of Boston Ballet. She added, “Mind Officially Blown.”

In October 2016, The Rock revealed, “I was 13 when I went to Washington Middle School” in Hawaii, so when he was in the area filming Jumanji, he said he “Had to go back to my roots, walk around, soak it in and take a moment to be grateful.”

Josh Gad was “Getting ready for the amazing homecoming parade at #pennstate” in October 2016 and described a French fry-topped sandwich he had here as “madness.”

Lance Bass came to Kenyon College’s campus in September 2016 and stumbled upon a sign that read, “Timberlake House.” He said, “Glad @justintimberlake could be w us here in spirit!”

Joe Jonas got in an outdoor workout at High Point University in September 2016.

“When you’re on a road trip home and you decide to stop at your old university” — Illinois State University — is what Michelle Williams (singer) said of her September 2016 visit to campus. She went by “Haynie Hall, my first dorm” and “Watterson Towers” and said of the latter, “I lovvvvvved living here! EVERYBODY wanted to stay in this dormitory! It was always LIT!!!”

Al Roker and his daughter finished up their “#college #tour #2016” at the University of Texas at Austin in September 2016.

While on campus at Lesley University in September 2016, “#collegekids” Eliza Dushku said she was “A little obsessed with my new school & this ‘hood.”

Kate Beckinsale shared in September 2016 that Unicorn School “is where I went to primary /grade school.” She joked, “Thank you #uniformschool for not throwing me out for the occasional brawl and for that time I tried to steal a bit of Hadrien’s Wall on a school trip … It WAS sparkly …”

Whitney Port and her husband had “Gone glidin'” together at Sugarbush Soaring in September 2016.

Mark Wahlberg went to church at St. Bernadette’s Catholic Primary School in September 2016 and said, “Have a good Sunday, everyone!”

Lucy Hale thanked Village Art Project in August 2016 “for letting us play.” She showed off her work and said, “Pottery is no joke y’all.I sucked. But I had fun! And Elvis has a new bowl.”

Mark-Paul Gosselaar shared a shot in July 2016 of him “Training for the filming of #Pitch” at the Crespi Carmelite High School baseball field.

While posing with the sign outside Roosevelt High School in July 2016, Class of ’96 graduate January Jones said, “High school reunion=nostalgia to the max!”

Kris Jenner shared Kim Kardashian’s Buckley School photo on a June 2016 throwback Thursday and captioned the pic, “My little Kimberly!”

Tyra Banks shared in May 2016 that she and her mom enrolled in an “intensive Boot Camp” at The Culinary Institute of America at Greystone and that “it changed my life.”

Jessica Chastain passed by her alma mater — the Juilliard School — in May 2016 and shared, “My love affair with Ibsen, Strindberg, Chekhov, & Shakespeare began within these walls.”

Emily Maynard went with friends to Wine and Canvas, Charlotte in May 2016 and “learned painting is not one of my hidden talents but we had fun anyway.”

Blake Lively came to Columbia University in February 2016 and said, “Taking my smart boys to Columbia. One more step in the endless quest to kidnap my awesome nephews to NY.”

Miguel dropped by his alma mater — Richard Henry Dana Middle School — in February 2016 and said, “visited my old middle school for this years talent show.” He added, “I always loved the smell of the auditorium and it was exactly how I remember it.”

In January 2016, Stella McCartney said, “Found my old sketch book” from Central Saint Martins, and that while it “Feels like a lifetime ago,” she added that it’s “Such an incredible school, so proud to have gone there back in the day!”

Paris Hilton said in January 2016 that Alte Universität is “Such a beautiful venue for my loves surprise birthday party.”

High School Musical stars Monique Coleman and Kaycee Stroh checked up on Sharpay’s double-wide pink locker at the real East High School during the 10-year anniversary celebration of the series.

Michelle Williams (singer) was “So excited to go back to my high school Auburn High School” in January 2016 “to film and show where I grew up. To show where my passion for the arts was born!”

Naomi Watts took a walk down “#memorylane” at Mosman High School in December 2015 and said it was “Good to be back” at her alma mater.

Eva Longoria was “Having some fun at Oxford University” by posing for her signature jump shot here in November 2015.

Class of 1994 graduate Reese Witherspoon “Took a stroll down memory lane” in November 2015 at her alma mater — Harpeth Hall School — “and spoke to the amazing student body about how lucky we are to be educated, free women in this world.”

“Oops :)” — Freida Pinto said she “Slightly ‘misinterpreted’ the practice of a Cornell University tradition” when she went up to the Hercules statue here in October 2015.

Class of 2009 alum Darren Criss came to The Diag at the University of Michigan in October 2015 and said it was “Just like ol times. Scarfin down @jimmyjohns in the Diag before rehearsal.”

Jason Aldean gave “big thanks to Windsor Academy and the City of Macon” — his hometown — when he had a “pretty cool day . . . shooting the new video at my old school” in September 2015.

Kanye West drew inspiration from his April 2015 visit to the Tumo Center for Creative Technologies that was documented on a season 10 episode of Keeping Up with the Kardashians.

Darren Criss “Stopped by the ol’ stomping grounds” — Accademia dell’Arte — in August 2015 and shared that he “wrote ‘Not Alone’ on this Yamaha Clavinova one sleepless night in an empty theater space in Arezzo. Had to go back to see how it was doing seven years later.”

Minka Kelly was a student at the New School of Cooking — in April 2015, she was learning how to “fabricate a filet.”

Ali Fedotowsky surprised Kevin Manno “with a Valentine’s Day cooking class” at EATZ LA in February 2015 and said, “This has truly been the best day ever!”

Lady Gaga went to MoMA PS1 in February 2015 to see the “Incredible Wael Shawky’s newest work, made of blown glass.. marionettes with lights inside them, the eyeballs even move! . . . And his message of ambition and peace, for the ages…eternal art. She added, “This is a ‘don’t miss’ opportunity.”

Cheryl Burke “Learned how to make some holiday side dishes” with her sister at this Le Cordon Bleu College of Culinary Arts in December 2015.

Eva Longoria was wowed by the Book of Kells exhibit at Trinity College Dublin in November 2014, calling it “truly a national treasure!”

James Franco graduated from Palo Alto High School in 1996 and comes back often — in October 2014 he painted a “Paly mural” with his mom and in 2015, he taught a film class.

Chrissy Teigan teased, “me wants to cry” over the lobster and potato entrée she ate here in September 2011 with husband John Legend.

Karli Kloss spent the last week of August 2014 “learning how to program in ruby,” becoming part of the growing group of “#girlswhocode.”