katy perry ET videoKaty Perry and Kanye West are an unlikely duo, and the video of their collaboration is a fittingly bizarre sci-fi oddity.

Starting out with a 'Wall-E' meets 'Return to Oz' vibe, the video for 'E.T.' tractor-beams in every angle of sci-fi weirdness imaginable. We're talking 'Avatar,' 'Stargate,' 'A.I.' -- no theme is off-limits.

And although Kanye's bars are definitely silly, possibly weak -- "I know a bar out in Mars / Where they drivin' spaceships instead of cars" -- we do get some gnarly glimpses of 'Ye and his diamond teeth floating in a no-gravity space situation. Watch the video here.