Mario Lopez Clashes with Costar Over Underwear Ad

It seems that Mario Lopez is obsessed with being the, uhh, biggest star on Broadway. The Chorus Line star reportedly clashed with co-star Nick Adams before the show's debut when Mario insisted Nick keep his biceps covered up (so as not to take attention away from Mario's own guns, we presume). Now, Mario is allegedly livid he was passed over by underwear company 2(x)ist, in favor of Nick, to grace a gigantic billboard in his skivvies.

"Mario was originally No. 1 on our radar as we planned the campaign," an insider tells the New York Post. "We were ready to call him with an offer, but then we saw Nick. He's younger, sexy, more interesting. On top of that, his body was crazy. We set up a meeting, and when he walked in, that was it. We never even looked at anyone else after that."

What's so special about Nick, anyway? Jason Scarlatti, 2(x)ist's creative director, describes the up-and-comer's appeal: "Nick's very masculine, sexy, modern. It's totally all about his body. Mario is a good-looking guy, but Nick had it. He's up and coming, the new face of sexy. He's original. He's hot."

We know it must hurt to be shoved aside for a younger man, Mario, but considering you were living on the D-List for so long after your Saved by the Bell years, shouldn't you show a little more gratitude for even having a career anymore? Looks like there's still one area in which you are the biggest—ego.