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

Sean Hayes
Age: 42
Occupation: Actor
Known For: His Emmy Award-winning and laugh-out-loud funny role as the flamboyantly gay Jack McFarland on the sitcom ‘Will & Grace,’ movie roles in ‘The Bucket List,’ ‘The Cat in the Hat’ and ‘Win a Date With Tad Hamilton!,’ Tony-nominated stage work, and co-founding the Hazy Mills production company

Chris O’Donnell
Age: 42
Occupation: Actor
Known For: Playing Robin in two ‘Batman’ films, other movie roles in ‘Scent of a Woman’ and ‘Vertical Limit,’ playing Finn Dandridge on ‘Grey’s Anatomy,’ and his current gig as Special Agent G. Callen on the TV show ‘NCIS: Los Angeles,’ which he probably needs in order to support his brood of five kids

Chris Isaak
Age: 56
Occupation: Singer, Songwriter and Actor
Known For: The super-sexy songs ‘Wicked Game’ and ‘Baby Did a Bad, Bad Thing,’ the even sexier Herb Ritts-directed videos for both, starring in Showtime’s ‘The Chris Isaak Show,’ and film appearances in ‘That Thing You Do!’ and ‘The Informers’

Patty Smyth
Age: 55
Occupation: Singer
Known For: Hit songs such as ‘Goodbye to You’ and ‘The Warrior’ as the frontwoman of Scandal, dueting with Don Henley on ‘Sometimes Love Just Ain’t Enough,’ famously rejecting an offer to front Van Halen, and having a temper that goes toe-to-toe with husband John McEnroe

Gretchen Wilson
Age: 39
Occupation: Singer and Songwriter
Known For: Charting 13 country singles including ‘Redneck Woman,’ ‘Here for the Party,’ ‘When I Think About Cheatin’,’ ‘Homewrecker’ and ‘All Jacked Up,’ and her collaborations with other country artists such as Big & Rich and Brooks & Dunn