Some of us have a person who knows someone that knows someone who went to school with someone famous.
However, some ex-students will have the claim to fame that they went to school with not one but two major stars.
Here's a lost of celebrities that went to school together, and some of them are pretty cool.
Lady Gaga and Nicky Hilton.
The pair went to the same Catholic school 'Convent of the Sacred Heart' in New York. Paris also attended, but was a few years older.
Lady Gaga has been quoted as saying the sisters were 'very, very clean at school.'
Obviously before Paris had that infamous sex tape leaked, which is anything but clean.
Jay Z and Busta Rhymes.
This pair, along with late rapper Notorious B.I.G studied at the George Westinghouse Vocational and Technical High School in Brooklyn.
A state-funded school all three performers came from humble beginnings that built to a lavish lifestyle with multi-million dollar fortunes.
Cameron Diaz and Snoop Dog.
Snoop was in the year above Cameron at Long Beach Polytechnic in Southern California.
She remembers him saying he 'wore lots of ponytails.'
Does it get any better than going to school with Snoop?! I doubt it.
Jennifer Aniston and Chastity Bono.
These two were actually good friends when they both attended New York City's School for Performing Arts.
Chastity has since changed her name to Chad and lives happily as a man and Jennifer reached superstardom of both Tv and the big screen.
Val Kilmer and Kevin Spacey.
Attending Chatsworth High School in California, this is where Kevin Spacey says he first knew he felt like an actor.
Val Kilmer has joked about the statement saying Kevin was an awful actor at school!
Neil Patrick Harris and Freddie Prince Junior.
Before Freddie became a teen heart throb and Neil became massive with How I Met Your Mother, these two brushed shoulders with the students at La Cueva High School in Albuquerque, New Mexico.
Neil Diamond and Barbara Streisand.
Ok, so as I said earlier SOME of them are cool, but these two are hugely successful!
They both attended Erasmus Hall High School and later went on to work with each other.
Notably they had a huge number 1 in 1978 with 'You don't bring me flowers (anymore)'...yeah it isn't on my playlist either.