Mercury Rev is an American alternative rock group, that formed in the late 1980s in Buffalo, New York. Original personnel were David Baker (vocals), Jonathan Donahue (vocals, guitars), Sean Mackowiak, a.k.a. "Grasshopper" (guitars, clarinet), Suzanne Thorpe (flute), Dave Fridmann (bass) and Jimy Chambers (drums).
With their early records, Mercury Rev offered experimental, psychedelic rock, which gradually shifted to a melodic, ornate sound. Mercury Rev is often compared to The Flaming Lips, and in fact share close ties: soon after the band's formation, Donahue also joined the Flaming Lips as second guitarist and appeared on two of their albums; and since the 1990 album In a Priest Driven Ambulance, Dave Fridmann has co-produced every Flaming Lips studio album to date except 1993's Transmissions from the Satellite Heart.