Jason Momoa is ready for life in the fast lane. He's, in fact, joining !The star confirmed the news Wednesday to ET's Rachel Smith at premiere in New York City, where he said, «Yeah, I'm going to do » after being asked what's next on the horizon for the 42-year-old actor.Momoa, who attended the premiere in support of his stepdaughter, Zoë Kravitz (who stars as Catwoman), also said he's champing at the bit to, finally, dabble as a villain.«I get to be the bad boy,» he told ET.