Though lacking the teenage venom of cuts such as '1969' and 'I Wanna Be Your Dog' from The Stooges and the unadulterated raw power of, well, Raw Power, Move Ass Baby is still essential for die-hard fans. The album, culled from rehearsals in Detroit, for the band's 1973 tour, runs the gamut from full-fledged, ready-to-record tunes to the types of swampy jams that the band has claimed indicative of their studio songwriting process. This album explores the creative process that gave birth to nearly all the Stooges albums. Starting with a jam session, an oldie or two, or maybe a blues riff, the songs gradually took shape and were refined from there. Here we find the Stooges in rehearsal, messing around with songs by Bo Diddley, Bob Dylan, Cream, and the Paul Butterfield Blues Band. We hear the beginnings of songs that never went any further, such as 'Old King Live Forever', 'I Come From Nowhere' or 'Wild Love', which had as much potential as any of their best material. And we have some very impromptu jams such as 'Move Ass Baby' and a fascinating James Williamson solo performance. Much of this material has never been heard before.