LOS ANGELES — We already know who's going to host the 2012 Oscars, but a newly released trailer from the Academy finds "Transformers" co-stars Josh Duhamel and Megan Fox sent off to track him down.

An executive — played by "Prison Break" and recent "Entourage" guest star William Fichtner -- sends the pair off on a global adventure to find the "off the grid" legend. And after encounters with a bartender played by Vinnie Jones and a hairy swamp guy played by Robin Williams, they meet "the one they call 'The Host."'"You could have texted," "The Host" replies. Billy Crystal will make his ninth appearance as the Oscars host on Feb. 26.