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Tina Fey and Amy Poehler -

The dynamic comedy duo of Tina Fey and Amy Poehler met at Chicago's ImprovOlympic comedy theater. That’s where their lifelong friendship started, which later resulted in tons of collaborations on 'Saturday Night Live' and on the big screen.

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Brooke Shields and Laura Linney -

Brooke Shields revealed that she is childhood friends with Laura Linney, having shared an old photo of them as kids.

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Gwyneth Paltrow and Maya Rudolph -

The actresses are long-time childhood friends, with their fathers first meeting as students in New Orleans. When they lived in Hollywood, they sent both Gwyneth Paltrow and Maya Rudolph to the prestigious Crossroads School for Arts & Sciences, where they were classmates.

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Elijah Wood and Macaulay Culkin -

Elijah Wood and Macaulay Culkin became friends when they worked on the film 'The Good Son' in 1993. The former child stars are friends to this day.

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John Mulaney and Nick Kroll -

If you’re a fan of 'Big Mouth' or 'Saturday Night Live,' then you’re most likely familiar with John Mulaney and Nick Kroll. These guys go way back to their college years in Georgetown. This was when they first started out with improv, which helped them reach the comedic level they enjoy today.

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Connie Britton and Lauren Graham -

Prior to starring in iconic television series, 'Friday Night Lights' and 'Gilmore Girls,' respectively, Connie Britton and Lauren Graham were roommates.

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Robert Downey Jr. and Kiefer Sutherland -

When they first started acting in the '80s, Robert Downey Jr. and Kiefer Sutherland were roommates for three years in LA.

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Demi Lovato and Selena Gomez -

Selena Gomez and Demi Lovato are known for first reaching stardom during their Disney years, which later on launched their successful music careers. However, their friendship spans way before Disney, as they both landed their first roles together on 'Barney and Friends' in the early 2000s.

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Nicole Richie and Kim Kardashian -

Kim Kardashian and Nicole Richie first met as preteens, and Kim K even admitted that they would shoplift makeup from a drugstore in Malibu. Today, they can be seen together at more glamorous events.

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Leonardo DiCaprio and Tobey Maguire -

Leonardo DiCaprio and Tobey Maguire met at various auditions in LA when they were 12 years old. They have been friends ever since, and even starred together in 'The Great Gatsby' (2013).

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Meghan Markle and Katharine McPhee -

Katharine McPhee and Meghan Markle know each other from childhood and even did musicals together. Today, they continue to hang out, but now with their husbands, David Foster and Prince Harry, who are also friends.

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Nicole Richie and Paris Hilton -

Paris Hilton and Nicole Richie were first known for their reality show 'The Simple Life,' but their friendship goes way back to childhood. The socialites grew up together in posh Bel Air.

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Beanie Feldstein and Ben Platt -

Beanie Feldstein and Ben Platt first met at a bat mitzvah as children, but it wasn't until high school that they became best friends.

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Debi Mazar and Madonna -

Actress Debi Mazar and Madonna first met in the early '80s in a nightclub elevator in New York City. Mazar, who was a makeup artist, was hired by Madonna to do her makeup.

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Britney Spears and Christina Aguilera -

The iconic pop stars met way before they started hitting the charts. Britney Spears and Christina Aguilera initially crossed paths as preteens through appearances on Disney Channel’s 'The Mickey Mouse Club.' These days, however, they're not close, with Spears calling Aguilera out for "refusing to speak" about her conservatorship.

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Justin Timberlake and Ryan Gosling -

Just like Spears and Aguilera, heartthrobs Justin Timberlake and Ryan Gosling also appeared on 'The Mickey Mouse Club' (1955-1996). There was even a point when their families shared a house together.

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Judd Apatow and Adam Sandler -

Known for teaming up on films like 'Funny People' (2009) and 'Sandy Wexler' (2017), Judd Apatow and Adam Sandler go way back to when they were both struggling comedians. They shared an apartment together in LA when first starting off in the comedy scene.

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Ashley Tisdale and Vanessa Hudgens -

Famous for playing on-screen frenemies in the 'High School Musical' franchise, Ashley Tisdale and Vanessa Hudgens were friends before appearing in the musical. The two actually met doing a Sears commercial a year before being cast in the first 'High School Musical' (2006).

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Nicole Kidman and Naomi Watts -

The actresses have been close friends for years. They attended the same high school and theater company in Australia, but it wasn't until they starred together in the 1991 film 'Flirting' that they became best friends.

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Paris Hilton and Kim Kardashian -

Though Paris Hilton was famous at the time, she hired her good friend, an unknown Kim Kardashian, as an assistant. They had a fallout for some years but have since reconciled.

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Amanda Seyfried and Mae Whitman -

The actresses have long been friends since the start of their acting careers. While Seyfried is best known for her film roles in productions like 'Mean Girls' (2004) and 'Mamma Mia!' (2008), Whitman has made a career in television series like 'Good Girls.'

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Adam Levine and Jonah Hill -

Jonah Hill and Adam Levine have been friends since middle school, and they are close to this day. Hill even officiated Levine's wedding to model Behati Prinsloo in July 2014.

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Courtney Love and Drew Barrymore -

Courtney Love and Drew Barrymore became friends during their party girl phase. Love revealed that she was 19 when she meet an eight-year-old Barrymore, smoking in a bathroom…

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Kimora Lee Simmons and Tyra Banks -

Kimora Lee Simmons and Tyra Banks met at the beginning of their careers, and the former models are still friends to this day. Banks is even the godmother to Simmons daughter, Ming.

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Victoria Justice and Taylor Lautner -

Victoria Justice and Taylor Lautner have known each other for years. When media outlets speculated if they were dating, Justice denied this, stating that they had been friends since the age of 12.

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Busy Philipps and Colin Hanks -

Busy Philipps and Colin Hanks met during college and dated for many years afterwards. Even after having gone their separate ways, they are still friends till this day.

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Lisa Kudrow and Conan O'Brien -

Lisa Kudrow and Conan O'Brien met in an improv club when they started doing comedy. They briefly dated, but the relationship blossomed into a long-lasting friendship.

Sources: (Best Life) (Us Weekly) (Insider)

See also: Celebrities who were already rich before being famous

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