"I mean, he's seriously the nicest guy ever. I'm in good company. He's great at what he does, so it takes some of the pressure off of me because I am nervous. I've never hosted before. I think we're going to have fun; we've known each other for awhile. I feel I'll be comfortable around him, so he'll make it easy for me." Reality TV star Khloe Kardashian is happy to have seasoned TV presenter Mario Lopez as her co-host on the new U.S. season of The X Factor.