Celebrities You Didn't Know Were Classmates

Cameron Diaz and Snoop Lion both attended Long Beach Polytechnic High School. Cameron even thinks she once bought weed from him!

Baron Davis, Kate Hudson, and Cash Warren were all students of Crossroads High School in Santa Monica at the same time.

Eddie Redmayne and Prince William both attended Eton, a prestigious English boarding school. Tom Hiddleston also attended school with the two stars!

Freddie Prinze Jr. and Neil Patrick Harris only graduated three years apart at La Cueva High School down in New Mexico.

Jack Antonoff and Scarlett Johansson both studied at the Professional Children's School in NYC. The pair also dated during their time in high school.

Back when Chaz Bono was Chastity Bono, he and Jennifer Aniston actually hung out together at New York City's High School of Performing Arts.

British music sensations Jessie J, Adele, and Leona Lewis all started out at the BRIT School in London.

According to BJ Novak, John Krasinski wouldn't be an actor without him. The two acted together at Massachusetts's Newton South High School. ''I think John started acting as a direct result of my casting him in the senior show," BJ said. ''So technically, he has me to thank for all of this, right?"

Here's another Office high school connection! Ed Helms was classmates with Brian Baumgartner, aka Kevin from the hit NBC show. Ed opened up about his time in school with Brian, saying that they were in a couple plays together and that Brian is "nothing like Kevin."

Josh Hartnett and Rachael Leigh Cook were both students at Minneapolis South High School.

Nicky Hilton and Lady Gaga were classmates at the Convent of the Sacred Heart in NYC.

Zach Braff once tweeted about his days at New Jersey's Columbia High School with Lauryn Hill.

It's easy to see Lena Dunham and Jemima Kirke as old high school buddies, but they also happened to be at St. Ann's School in New York with Paz de la Huerta. Jemima even said that Paz was her "best friend" during her high school days.

Dapper lads Robert Pattinson and Tom Sturridge were classmates at The Harrodian School in London. The two became good friends during their time in school.

Santa Monica High School bolsters a huge list of famous ex-students, including Sean Penn, Rob Lowe, Charlie Sheen, and Robert Downey Jr. Rob wrote about his friendship with three actors during school, as well as his closeness to Charlie's brother, Emilio Estevez.

Val Kilmer and Kevin Spacey both apparently acted together back in their school days at Chatsworth High School just outside LA. Val said that Kevin is "proof that you can learn how to act. Because he was horrible when he first started, and now he's so good."

Busta Rhymes and Jay Z once had a rap battle during their tutelage at George Westinghouse Career and Technical Education High School in NYC. Notorious B.I.G. was there too.

Bradley Cooper starred in director Brian Klugman's The Words, but that wasn't the first time they met. Both of them were students at Germantown Academy in Pennsylvania.

Matt Damon and Ben Affleck have been working together for years, but they actually first met at the Cambridge Rindge and Latin School in Massachusetts.

Nicole Kidman and Naomi Watts both attended the North Sydney Girls' High School down under in Australia. The two became very close during their school days and remain friends to this day.