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

Jack Black
Age: 43
Occupation: Actor, Musicican
Known For: His roles as the chubby leading man in 'Shallow Hal', 'Nacho Libre', and 'School of Rock,' his voice over work as the panda in 'Kung Fu Panda,' and being one half of the comedy and satirical rock duo Tenacious D.

Jennifer Coolidge
Age: 51
Occupation: Actress
Known For: The MILF, Stifler's mom, in the 'American Pie' movies, Paulette the manicurist in 'Legally Blonde,' and her current supporting role in '2 Broke Girls' as Sophie

Shania Twain
Age:  47
Occupation: Singer, Songwriter
Known For: Her long list of hits on both the Country and Pop charts, and being famously cheated on by husband/record producer Robert John "Mutt" Lange in 2008 with Twain's way less attractive best friend. She married the ex-husband of the aforementioned former best friend in 2011.

LeAnn Rimes
Age: 30
Occupation: Singer, Songwriter
Known For: Her long list of hits on both the Country and Pop charts, and her well-publicized on-set extramarital affair with married co-star Eddie Cibrian in 2009

Kyle Massey
Age: 21
Occupation: Actor
Known For: Starring in the Disney Channel's 'That's So Raven' and its spin-off 'Cory in the House,' being the voice of Milo in the Disney animated series 'Fish Hooks,' and coming in second on the 11th season of ABC's 'Dancing with the Stars'

Jason Priestley 
Age: 43
Occupation: Actor
Known For: His role as the virtuous Brandon Walsh on the original 'Beverly Hills, 90210'

Armie Hammer
Age: 24
Occupation: Actor
Known For: Being one of Winklevoss twins in 'The Social Network,' and Prince Alcott in'Mirror Mirror'. Next summer he'll be the new 'Lone Ranger' alongside Johnny Depp's Tonto.