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

Tom Petty
Age: 62
Occupation: Singer, Songwriter, and Musician
Known For: Fronting Tom Petty and the Heartbreakers, performing with the Traveling Wilburys, selling more than 60 million albums, and numerous hit songs such as 'Refugee,' 'The Waiting,' and 'Mary Jane's Last Dance'

Snoop Dogg
Age: 42
Occupation: Rapper, Producer, and Actor
Known For: Being a Dr. Dre protege, songs such as 'What's My Name' and 'Gin & Juice,' several brushes with the law, being an outspoken proponent of marijuana legalization, and seemingly guest-starring in every video ever

Danny Boyle
Age: 56
Occupation: Director and Producer
Known For: Winning the Academy Award for Best Director for 'Slumdog Millionaires,' and working on other films such as '127 Hours,' '28 Days Later,' 'Sunshine,' and 'Trainspotting'

Viggo Mortensen
Age: 55
Occupation: Actor
Known For: Roles in films such as 'Carlito's Way,' 'Crimson Tide,' 'The Lord of the Rings' trilogy, and 'A History of Violence,' and an Oscar nomination for his role in 'Eastern Promises'

John Krasinski
Age: 33
Occupation: Actor
Known For: Playing Jim Halpert on the NBC sitcom 'The Office,' and appearing in films including 'Away We Go,' 'Leatherheads,' and 'It's Complicated'