Here's a look at some notable birthdays being celebrated today:

Demi Moore
Age: 49
Occupation: Actress and Tabloid Magnet
Known For: Roles in films such as 'St. Elmo's Fire,' 'Ghost,' 'A Few Good Men,' and 'Indecent Proposal,' her former marriage to Bruce Willis, and her current marriage to Ashton Kutcher, which is reportedly in peril after a cheating scandal

Leonardo DiCaprio
Age: 37
Occupation: Actor
Known For: Starring in acclaimed films such as 'Titanic,' 'Catch Me If You Can,' 'Gangs of New York,' 'The Aviator,' 'The Departed,' 'Revolutionary Road,' and 'Inception,' being an environmental activist, and his habit of never ever dating anyone unless she has a modeling contract

Stanley Tucci
Age: 51
Occupation: Actor, Producer, and Director
Known For: Movies such as 'A Midsummer Night's Dream,' 'Maid in Manhattan,' 'The Devil Wears Prada,' and 'Julie & Julia,' and his Oscar-nominated role in 'The Lovely Bones'

Calista Flockhart
Age: 47
Occupation: Actress
Known For: Playing the title character on 'Ally McBeal,' her role as Kitty Walker McCallister on 'Brothers & Sisters,' her much-maligned toothpick-thin physique, and her recent marriage to actor Harrison Ford

Carson Kressley
Age: 42
Occupation: Television Personality
Known For: Being the fashion expert on the television program 'Queer Eye for the Straight Guy,' hosting the show 'How to Look Good Naked,' and being a contestant on the 2011 season of 'Dancing with the Stars'

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