Here’s 20 of Your Favourite Celebrities When They Were 20-Years-Old

20-year-old Jennifer Aniston had appeared in several Off-Broadway productions, but hadn't hit it big yet. Yet.

At 20, Gwyneth Paltrow had already made her stage debut at the Williamstown Theatre Festival in Massachusetts and soon made her film debut with the musical romance Shout. She was then cast by Steven Spielberg in the adventure film Hook as the young Wendy Darling.

In her 20th year, appeared with Christy Turlington, Linda Evangelista, Cindy Crawford and Tatjana Patitz on a cover of British Vogue, shot by Peter Lindbergh, turning them into icons. The five models, plus newcomer Kate Moss, became known as the 'Big Six'.

Emma Stone, our imaginary best friend, was just on the verge of her big break at the age of 20. She had starred in films like The Rocker and House Bunny, but the three films she was in at the age of twenty (Ghosts of Girlfriends Past, Zombieland and Paper Man) brought her into the spotlight.

At the age of 20, Lady Gaga began dating producer Rob Fusari, who allegedly was the first to call her 'Lady Gaga'.

By the age of 20, the Olsen twins had already completed a successful acting career and were moving onto their next venture: fashion. They were the faces of upscale fashion line Badgley Mischka that year and launched their label Elizabeth & James the next year.

Kate Moss famously began her modelling career at the age of 14 so by 20 she was well on her way.

At the age of 19, Barrymore posed nude for the January 1995 issue of Playboy. Director Steven Spielberg, her godfather, reportedly gave her a quilt for her 20th birthday with a note that read, 'Cover yourself up.' Legendary.

20-year-old Ariana Grande left her Nickelodeon roots behind and released her first studio album Yours Truly, which debuted at number one on the US Billboard 200 albums chart.

By the time Zendaya turned 20, she had said farewell to Disney and was hitting the big screen in Spider-man: Homecoming. She also released her own fashion line, Daya by Zendaya.

At the age of 20, Laura Dern was just beginning her acting career and picking up recognition along the way.

Jennifer Lawrence's 20th year saw her star in her breakthrough role in the drama Winter's Bone, which won the actress her first nomination for the Academy Award for Best Actress, making her the second youngest person to be nominated in the category.

By the age of 20, Taylor Swift had released two successful albums, Taylor Swift and Fearless, and had won several awards at the Country Music Awards, American Music Awards and Billboard Music Awards.

By 20, Rihanna had released three albums: Music of the Sun, A Girl like Me and Good Girl Gone Bad (later reissued as Good Girl Gone Bad: Reloaded), but it was the release of Good Girl Gone Bad Live, her first live long-form video, that really saw the singer shoot to fame.

The actress had held many successful acting roles by the age of 20, including in Dawson's Creek.

Angelina Jolie began acting at the age of 16, but had her first big Hollywood role at the age of 20 in Hackers.

At 20-years-old, Keira had already starred in both Bend It Like Beckham and the first Pirates of the Caribbean.

At the age of 20, Beyonce was a member of Destiny's Child, who were working on their third album.

By 20, Britney had left her good-girl Disney image in the past and was well on her way to becoming the Britney we all know and love.

The future-Mrs-Justin-Bieber was just beginning her fashion career: her 20th year saw her walk for shows during New York, London and Milan Fashion Week.