N.A.S.A.'s upcoming album, The Spirit of Apollo, has a murderer's row of collaborators, and this new single, "Whachadoin?" is no different—it features verses from M.I.A., Santogold, and Spank Rock and space-aged guitar work from Nick Zinner of Yeah Yeah Yeahs over the booming beat. Santogold and M.I.A. work together on the chorus (lending credence to those who say Santogold sounds just like M.I.A.) while the Spank Rock fellas talk about their favorite topic (sex) on the verses. This N.A.S.A. project is proving that there is no such thing as too many famous guest stars.