Holly Madison and Mario Lopez Check Out the World MMA Awards in Sin City

Posted Saturday February 8, 2014 5:04 PM GMT

Checking out some of the toughest guys in the ring, Holly Madison and Mario Lopez attended the Fighters Only World Mixed Martial Arts Awards in Las Vegas on Friday (February 7).

The former "Girl Next Door" looked fabulous in a sleeveless animal print dress with dark nylons and heels, while the "Extra" host donned a black suit and matching skinny tie on the red carpet.

In addition to the MMA stars, plenty of other celebs were in attendance. Posting a pic of the pair, Mario tweeted, "Hangin with @GeneSimmons ! Night is made... #KISS."

Meanwhile, Holly got a little starstruck herself, tweeting, "Christie Brinkley is HOT!" Check out the two in the photos below.

Photo Credit: FameFlynet.com