Heidi Montag's New Face Struggles to Eat Burger

On The Hills' sixth season premiere Tuesday, Heidi Montag's family grills her about undergoing 10 plastic surgery operations in one day.

Her sister Holly tells her she was shocked Heidi, 23, got all the work done because she always had "confidence ... I don't know what happened."

Heidi, 23, says she just "wanted to be happier."

The real fun starts when Heidi makes her best attempt at eating a burger.

Credit: Us Weekly