CELEBRITY BIRTHDAYS (2/21/11):  Jennifer Love Hewitt - 32  She's the "Ghost Whisperer", you know.  It's been said John Mayer wrote "Your Body Is A Wonderland" about her, but Mayer has since stated he wrote the song about his first girlfriend when he was 14. 

She was engaged to be married to some Scottish actor, but called it off in '09 and subsequently started dating costar Jamie Kennedy. After about a year, Jennifer finally realized just how far DOWN she was dating and the pair broke up.

--Ashley Greene - 24  Alice Cullen in the "Twilight" movies, Joe Jonas' main squeez...

--Ellen Page - 24  "Juno". Was also most recently in "Inception" ...

--Kelsey Grammer - 56  Was and always will be "Frasier". Divorced "Real Housewives of Beverly Hills" Camille last week.  He's going to marry his future ex-wife , 29-year-old Kayte Walsh (pictured below), later this week ...

--William L. Petersen - 58  He used to be Gil Grissomon "CSI" until '09 when he left to pursue other opportunities. Now Laurence Fishburne plays the role of the team leader ...