I've been trying to think of a joke for this, K-Fed stepping into the wrestling ring, but right now I've got nothing.
Screw it, let's just let K-Fed handle it for us:
Make all your jokes, because New Year's Day I'm the one who is going to be laughing. Oh yeah, Cena, my name is not K-Fed, it's Kevin Federline, b***h, and I want some and I'm gonna get some."I just hope he doesn't get this Cena person pregnant.