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

Christina Applegate
Age: 41
Occupation: Actress
Known For: Playing Kelly Bundy on 'Married ... With Children,' roles in films such as 'Don't Tell Mom the Babysitter's Dead' and 'Anchorman,' starring on Broadway in 'Sweet Charity,' her current role on the NBC sitcom 'Up All Night,' and being a breast cancer survivor

John Larroquette
Age: 65
Occupation: Actor
Known For: His skill as both a comedic and dramatic actor, and roles on shows like 'Night Court,' 'The West Wing,' 'The John Larroquette Show' and 'Boston Legal'

Age: 52
Occupation: Singer, Songwriter and Actress
Known For: Rising to fame singing Christian music in the 1980s before having pop hits like 'Baby Baby' and 'The Next Time I Fall,' winning six Grammys, and her marriage to country star Vince Gill

Jill Hennessy
Age: 44
Occupation: Actress
Known For: Her role as assistant district attorney Claire Kincaid on 'Law & Order' and starring as medical examiner Jordan Cavanaugh on 'Crossing Jordan'

Jenna and Barbara Bush
Age: 31
Occupation: Reformed Troublemakers
Known For: Being the twin daughters of former President George W. Bush and keeping the Secret Service busy with their antics during his eight years in office

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