Today, Kristin Cavallari wished a happy birthday on Twitter to her former Hills cast mate and published author Heidi Montag.

It has come to our attention that Kristin Cavallari’s husband Jay Cutler’s birthday was on Wednesday (Taurus). He is 32. Happy birthday!

Jennifer Aniston, who was not nominated for an Oscar for Cake but is fine, rang in 46 by renting out the two-lane bowling alley in the Roosevelt Hotel. Shockingly, US Weekly reports, one A-lister who was invited to the soiree was notably absent.

Leonardo DiCaprio, actor and founding member of the Pussy Posse, had his 40th birthday on Tuesday night. The known playboy kept the party low-key, however, celebrating with just a few close friends and absolutely no girls allowed just kidding there were so many models there!!

[Television legend Oprah Winfrey turns 60 today. While she celebrated the big event on Friday at a Soul Cycle class, she canceled all official party plans because, according to a source, "the guest list was getting out of control." Image via AP]

[National treasure Nicolas Cage turns 50 today. We can only hope the overpaid star will spend the day losing his shit. Image by Lionel Cironneau via AP]