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

Peter Cetera
Age: 68
Occupation: Singer, Songwriter, and Musician
Known For: Serving as lead vocalist for the group Chicago on such hits as '25 or 6 to 4,' 'If You Leave Me Now,' and 'Wishing You Were Here,' and having solo hits such as 'Glory of Love' and 'The Next Time I Fall'

Jean Smart
Age: 61
Occupation: Actress
Known For: Playing the ditzy Charlene on the CBS sitcom 'Designing Women,' and roles in other shows like '24,' and 'Hawaii Five-0'

Jacqueline Bisset
Age: 68
Occupation: Actress
Known For: Her many television and movie roles, but mostly for her role in the 1977 film 'The Deep'. The underwater scene in which she's wearing only a thin, white T-shirt and bikini bottom made a man out of many a boy back in the day

Jeffrey Ross
Age: 47
Occupation: Comedian
Known For: His  offensive humor, and appearance on the last ten Comedy Central Roasts