Heaven 17 are an English new wave synthpop band originating from Sheffield in the early 1980s. Originally a trio, the band comprised Martyn Ware (keyboards), Ian Craig Marsh (keyboards) (both previously with The Human League) and Glenn Gregory (vocals). Although most of the band's music was recorded in the 1980s, they have occasionally reformed to record and perform since then, playing their first ever live concerts in 1997. Marsh left the band in 2007 and Ware and Gregory continued to perform as Heaven 17 since then.