Yeah, according to most wrestling rumor sites, Jack Black will most likely be on Smackdown!, probably this week, since his movie, Nacho Libre is about Lucha Libre (wrestling in Mexico) and because on the WWE.com Smackdown! page there is a link for Ignacia aka Nacho. Check it out:

http://www.wwe.com/superstars/smackdown/nacho/

–Socram