Jackie-O Motherfucker (or JOMF) is an American experimental rock group that formed in Portland, Oregon in 1994. Jackie-O Motherfucker began as a duo consisting of multi-instrumentalist Tom Greenwood and saxophonist Nester Bucket. The group now has more than twenty rotating members drawn from the U.S. experimental scene, including members of Evolutionary Jass Band,Gang Gang Dance, Set Fire to Flames, Heavy Winged, and Portland artists Nudge, Eternal Tapestry, Inca Ore, Dragging an Ox Through Water, Valet, and White Rainbow As of 2006, the core of the group is founding member Greenwood.

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