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

Phil Spector
Age: 72
Occupation: Songwriter, Producer and Inmate
Known For: Originating the legendary "Wall of Sound" production technique, pioneering the 1960s girl-group sound, working with artists like Ike and Tina Turner, the Beatles and the Ramones, and currently serving a prison term for a 2009 murder conviction

Chris Daughtry
Age: 32
Occupation: Singer, Songwriter and Musician
Known For: Placing fourth on the fifth season of 'American Idol' before founding the band Daughtry, whose first album became the fastest-selling debut rock album in history and spawned the Grammy-nominated hit single 'It's Not Over'

David Sedaris
Age: 55
Occupation: Writer and Humorist
Known For: His autobiographical and self-deprecating humor which has been showcased in awesome and best-selling essay collections including 'Holidays on Ice' and 'Me Talk Pretty One Day,' his work on NPR's 'This American Life,' and being the big brother of equally-hilarious writer and actress Amy Sedaris

Lars Ulrich
Age: 48
Occupation: Drummer
Known For: Being a founding member of the metal band Metallica, which famously sued Napster for copyright infringement in 2000 after the entire Metallica catalog was found to be freely available for download through the file-sharing service

Jared Leto
Age: 40
Occupation: Actor and Musician
Known For: Playing broody, sexy Jordan Catalano in the cult-classic teenage TV drama 'My So-Called Life,' roles in films like 'Requiem for a Dream,' 'Fight Club' and 'American Psycho,' and being the lead vocalist, multi-instrumentalist and main songwriter for the band 30 Seconds to Mars