I love Mario Lopez, but it looks like his ego is really as big as his beautiful tan muscles!

The New York Post is reporting that Mario is determined to have the hottest body on stage as he takes on Broadway in "A Chorus Line."

From The Post: "Lopez, who just took over the role of Zach, the exacting director of "A Chorus Line," is mighty proud of his biceps. So proud, in fact, that he refused to wear Zach's costume, a tan sweater with long sleeves.

It's an iconic outfit, based on that worn in real life by "A Chorus Line" creator Michael Bennett, and it's been worn by countless Zachs in productions of "A Chorus Line" all over the world for the past 30 years."

Mario has evidently opted for a short sleeve shirt that shows off his biceps, but it doesn't stop there. Lopez won't let his co-star Nick Adams expose his guns while standing next to Mario. Despite the fact that Nick's character Larry is supposed to go sleeve-less. He'll be wearing a hoodie when next to Mario on stage.

A little bit of diva never hurt anyone, I don't guess. If he starts throwing Blackberries, we'll worry!