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

Glen Campbell
Age: 76
Occupation: Singer, Songwriter and Actor
Known For: Releasing more than 70 albums with classic hits like 'By the Time I Get to Phoenix,' 'Wichita Lineman,' 'Rhinestone Cowboy' and 'Southern Nights,' appearing in movies like 'True Grit,' winning dozens of pop and country awards, and recently announcing he has Alzheimer's disease

Jack Nicholson
Age: 75
Occupation: Actor
Known For: A long and storied career including Oscars for his roles in 'One Flew Over the Cuckoo's Nest,' 'As Good as It Gets' and 'Terms of Endearment,' other notable roles in 'Easy Rider,' 'The Shining' and 'Chinatown,' and being Hollywood's most lovable playboy and biggest Los Angeles Lakers fan

Peter Frampton
Age: 62
Occupation: Singer, Songwriter and Musician
Known For: His blockbuster 1976 album 'Frampton Comes Alive!,' which spawned the classic rock hits 'Baby, I Love Your Way,' 'Show Me the Way' and 'Do You Feel Like We Do,' appearing as himself in TV shows such as 'The Simpsons' and 'Family Guy,' and his frequent collaborations with other artists including David Bowie and members of Pearl Jam

Ryan Stiles
Age: 53
Occupation: Actor and Comedian
Known For: His hilarious improv comedy on the American and British versions of 'Whose Line Is It Anyway?,' his sitcom work on 'The Drew Carey Show' and 'Two and a Half Men,' and guest-starring on shows like 'Murphy Brown,' 'Mad About You' and 'Mad TV'

Sherri Shepherd
Age: 45
Occupation: Actress, Comedian and Talk Show Host
Known For: Co-hosting the daytime talkshow 'The View' and sometimes garnering negative press for her ridiculous statements about science and history, being the current host of the 'Newlywed Game,' having a recurring role on the NBC series '30 Rock,' and being a contestant on the 14th season of 'Dancing with the Stars'