Blake Lively was class president, part of the cheerleading squad, and in a competitive show choir - talk about a busy schedule! According to former classmates, she was also a bit of a class clown.
Chris Pratt was into high school sports and was popular with all of the school cliques; we can totally imagine him disrupting classes to make everyone laugh, including the teacher!
Elizabeth Banks was a total sports girl, spending most of her time in the outdoors. But when sliding into third base in a baseball game resulted in a broken leg, she turned to theatre and the rest is history.
Emma Stone started acting when she was 11 years old and attended only a single semester at an all-girl Catholic high school before using a PowerPoint presentation to convince her parents of moving to Hollywood to pursue acting full-time.
James Franco is now known for his intellectual ways, but that wasn't always the case. When he was still in high school he got into trouble with police for things like graffiti, stealing, and crashing cars in the California streets
As a teen, Rachel Maddow was a total jock, competing in her high school's volleyball, swimming, and basketball teams. But when she sustained a shoulder injury, Rachel abandoned sports and started volunteering at a local AIDS clinic instead.
Anna Faris has described herself as a huge high school nerd. She wore glasses, weird hairdos and strange clothes, including a Christmas tree skirt as a cape and, for three straight months, purple gloves!
Matt LeBlanc is famous for playing Joey Tribbiani, a born and bred New Yorker, but he was actually born in Massachusetts. However, like Joey, he tried his hand at modeling and began his career as a commercial actor.
Zooey Deschanel comes from a showbiz family, and in high school became friend with future stars Jake Gyllenhaal and Kate Hudson. She never thought she'd be in Hollywood though, and always pictured herself as a Broadway star!
Chace Crawford became famous for playing one of the beautiful teens of Gossip Girl, which actually suited him quite well: he started modeling in high school, first for Abercrombie and Fitch and later for Hollister.
It seems hard to believe now, but Harrison Ford was once a massive nerd. He was bullied at school and was a member of the social sciences and model train clubs.
Oprah grew up in a rural farming community in Mississippi, where she had a troubled and violent adolescence; which is why since she became famous she has used her money and platform to uplift those around her.
Stanley Tucci was always involved in theatre, acting in plays way before high school. His first professional role tough was as an extra in a Broadway production during the 70s.
Amy Adams was involved in the performing arts since an early age, singing in her high school choir and training to become a ballerina as an apprentice at a local dance company.
Halle Berry was an overachiever from an early age, participating in dozens of extracurriculars as the newspaper editor, class president, and head cheerleader. She also amassed a number of beauty pageant titles during the early 1980s.
Paul Ryan grew up in rural Wisconsin and got an early interest in politics, government, ethics, and morality both from his father -a lawyer- and from the literature of Ayn Rand.
Sarah Palin grew up in a small Alaskan town and was always an outdoors and sports enthusiast. She was a member of her high school's basketball team, where her aggressive playing style earned her the nickname of "Sarah Barracuda".
When he was a teenager, Louis changed the pronunciation of his Hungarian last name -Szekely- to "See-kay", from which his current moniker "CK" derives. He started doing stand up when he was only 17 years old.
Robert Downey Jr
Robert Downey Jr. began acting at the age of five, and dropped out of high school during his junior year to pursue professional acting full time - a risky move that totally paid off!
Natalie Portman was discovered at age 11 by a Revlon Cosmetics representative, who encouraged to try modeling. Natalie did, but found it boring and decided to pursue acting instead, landing her first major role as Mathilda in Leon The Professional at age 13.
Anne Hathaway's mum was an actress, so Anne was in contact with the performing arts from an early age. In fact, she was so good that she became the first and only teenager accepted to The Barrow Group, a prestigious theater company and acting school.
Gwen Stefani was interested in fashion since an early age when her mum taught her to sew. Her love of music came partly from her brother who was in a number of reggae and ska bands, and with whom she formed No Doubt.
Peter Dinklage went to an all-boys Catholic prep school where he started acting in the fifth grade. His wit, sense of humor, and talent propelled him right onto the stage of all of the school's drama productions.
Mary-Kate and twin sister Ashley have been involved in show business pretty much since they were born - they started acting at only nine months old on the wildly successful sitcom Full House.
Pamela Anderson was born to a working-class family in British Columbia, Canada, and started working as a fitness instructor during her late high school years before starting her modeling career.
Zachary Quinto started acting quite early, at the young age of 11, in a Pittsburg acting group called CLO Mini Stars. Some of his early work included leading roles in The Wizard of Oz and Cinderella.
Jennifer Garner trained as a dancer since she was three years old, but did not want to dance professionally. Acting wasn't her goal either: as a young girl she wanted to become a doctor or a librarian.
Channing Tatum was a keen football player in high school and even got offered an athletic scholarship to attend college, but he turned it down to pursue other interests like modeling, acting, and dancing.
Steve Buscemi started acting in high school productions but had a hard time breaking into the business - after graduation, he worked a number of odd jobs, including firefighting in New York City.
Amy Poehler was a performer and entertainer from an early age, staging plays for her family starring her siblings and cousins. During high school, she was part of the cheerleading squad.
Sean Penn comes from a show business family, with an actor/director father and an actress mother. During high school, he befriended other to-be actors Emilio Estevez, Charlie Sheen, and Rob Lowe.
Madonna grew up in a very religious household as the middle child of six siblings, which fired up her performance instincts from early on. During her teenage years, she was very rebellious and used to turn her clothes into revealing outfits and frequent underground gay nightclubs.
Kirstie Alley fell into acting almost accidentally after she appeared in a couple of game shows. She had moved to Los Angeles after school to pursue Scientology and a career in interior design.
Jeff Bridges was born into a Hollywood family and started acting quite early on, but his career didn't start until after graduating high school: he was a rebellious teen and was sent to a military academy during his freshman year.
Rooney Mara comes from a prominent football family, but her mother's love of classic cinema inspired to act since an early age. While in school, she studied abroad in Ecuador, Bolivia, and Peru.
Paul Rudd's parents hail from England but he grew up in Kansas and developed an interest in drama from early on. While in school, he attended the British Drama Academy in the Oxford University for a three-month workshop.
Eva Longoria grew up in a ranch in Texas and started competing in beauty pageants from an early age, but also had a keen interest in the medical sciences, which she went to college for.
Matthew McConaughey grew up in Texas and was quite the sportsman in high school, playing both tennis and golf. He was also voted "Most Handsome Student" by his graduating class.
JLo grew up in the Bronx and was encouraged by her parents to perform from an early age, singing at dancing at school and at home. She was also an excellent athlete, competing nationally in gymnastics, track, and softball.
Tupac started rapping early on, accompanied during high school by one of his friends doing beatbox to his rhymes. He attended a performing arts school where he studied acting, poetry, jazz, and ballet.
Joe Biden had a stutter during childhood, which he overcame by memorizing poetry and performing it out loud in front of the mirror. Despite being quite a small teenager, he was also a star football player.
Doris Burke is the youngest of eight siblings and developed an interest in sports from an early age, playing basketball since the second grade and going to college on an athletic scholarship.
Tina Turner started singing at a very early age in her church choir. During high school, she worked as a maid and also was a member of both the cheerleading squad and the basketball team.
Jason Alexander wanted to perform from an early age and convinced his parents to take voice lessons prepare for his bar mitzvah. He started acting in school plays and had adopted his stage name by age 15.
Cobie started acting during primary school, but during high school defaulted to modeling. But this soon became stifling since it did not allow for her to have a voice, and Cobie returned to acting and performing on the stage.
Tina Fey always wanted to perform but didn't think she had it in her. During high school, she spent her weekend nights having friends over for board game parties.
Will Smith was a good student who often got in trouble and out of it by sheer charm, which earned him the nickname "Prince". He started rapping at age 12, and later met a DJ at a party and formed the duo DJ Jazzy Jeff & The Fresh Prince.
Janis Joplin was a high school rebel, abandoning popular 1950s girls' fashions and favoring men's shirts, tights, and short skirts instead. She had a keen interest in the Beat Generation, that would later inspire both her lyrics and her lifestyle.
Alec Baldwin had an interest in acting from an early age, participating in plays during high school. He abandoned his performing dreams to study political science in college, but after graduating decided to return to the stage.
Kim Kardashian grew up with wealth and privilege as the daughter of Robert Kardashian, one of OJ Simpson's lawyers. She started working for her father's music management company during high school and became a closet organizer for rich and famous classmates like Paris Hilton.