Talented and often-controversial Grey's Anatomy star Katherine Heigl turns 30 today. She got married last winter to musician Josh Kelley. Happy birthday, Katie!

The Emmy-winning actress is once again raising eyebrows on and off the Grey's Anatomy set this season with Izzie's romances with Alex and her dead fiance, Denny.

There has been speculation that this is leading toward Heigl's departure from the series, but that's pure conjecture right now. We just sit back and enjoy it for what it is.

Here's a little photo gallery of Katherine Heigl in honor of her big day. Click to enlarge!

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.