1949-
Usain Bolt became the first man in Olympic history to win both the 100-meter and 200-meter races in world record times in 2008. Four years later, at the London Olympics, he became the first man to win gold medals in both the 100 and 200 at consecutive Olympic Games and the first man in history to set three world records in a single Olympic Games competition.
1986-
Entrepreneur Sean Combs has produced big-name artists like Mariah Carey, created the Sean John clothing line, and recorded his own platinum albums.
1969-
Simon Cowell is a record producer and television personality known for his scathing critical remarks as a judge on the television show, "American Idol."
1959-
A-list actor and Scientologist Tom Cruise is the star of many box office hits, including Risky Business, A Few Good Men, The Firm, and Jerry Maguire.
1962-
Actor and cultural icon James Dean starred in East of Eden, Rebel Without a Cause and Giant. He was killed in a tragic car accident at age 24.
1931-1955
Leonardo DiCaprio has starred in such films as Titanic, Gangs of New York, The Aviator, The Departed, Inception and Django Unchained.
1974-
Clint Eastwood has made his name as a popular TV and film actor. He went on to become a famed director, working on several Academy Award-winning films.
1930-
Dubbed “King of Hollywood,” Gone with the Wind actor Clark Gable epitomized Hollywood's Golden Age, and was a legend for his on- and off-screen romances.
1901-1960
Paris Hilton is best known as the Heiress and Reality star that courts regular media attention for her socialite lifestyle and short-lived romances.
1981-
Actress Katie Holmes played Joey Potter on The WB teen drama Dawson's Creek from 1998 to 2003. She has a daughter with actor Tom Cruise.
1978-
Kim Kardashian is a model, actress, entrepreneur, socialite and star of the reality show Keeping Up with the Kardashians.
1980-
Ashton Kutcher's first acting gig, playing Kelso on That '70s Show, led him to roles in films like Guess Who, A Lot Like Love, The Guardian, No Strings Attached and Jobs. The actor, model and producer married Demi Moore in 2005.
1978-
Jay Leno is the late-night talk show host of The Tonight Show. Fallon announced plans to exit the long-running series in April 2013.
1950-
Actor, singer Dean Martin starred in several films with Jerry Lewis and belonged to the "Rat Pack," which included Frank Sinatra and Sammy Davis, Jr.
1917-1995
American film star Steve McQueen was one of the most popular and well-paid actors of the 1960s and ‘70s. He starred in films like The Great Escape, Bullit and The Getaway.
1930-1980
Dennis Rodman is considered one of professional basketball's all-time great rebounders. He helped lead the Detroit Pistons and later the Chicago Bulls to multiple titles.
1961-
British actor Peter Sellers was incredibly versatile, playing Chief Inspector Clouseau in the Pink Panther films with as much ease as Clare Quilty in Lolita.
1925-1980
Actor and lawyer Ben Stein was a speech writer for Richard Nixon, but is best known as the economics teacher in Ferris Bueller's Day Off.
1944-
American professional tennis player Serena Williams has won 27 Grand Slam titles, including five Wimbledon and five Australian Open championships, and several Olympic gold medals.
1981-
1968-
Sean Young is an American actress best known for her roles in the films Blade Runner (1982) and No Way Out (1987).
1959-