U.K. are a British progressive rock supergroup originally active from 1977 until 1980. The band was composed of singer/bassist John Wetton (formerly of King Crimson, Roxy Music, Bryan Ferry’s band and Uriah Heep), keyboardist/electric violinist Eddie Jobson (formerly of Curved Air, Roxy Music and Frank Zappa’s band), guitarist Allan Holdsworth (formerly of Tempest, Soft Machine, The New Tony Williams Lifetime and Gong) and drummer Bill Bruford (formerly a full member of Yes and King Crimson, and also a tour drummer for Genesis), later replaced by drummer Terry Bozzio (formerly of Frank Zappa’s band). UK reformed with John Wetton, Eddie Jobson and Terry Bozzio for a world tour in 2012.