Were an English rock band formed in London in 1968. They became a transitional group between early hard rock and heavy metal and the new wave of British heavy metal. The band's final lineup consisted of vocalist Phil Mogg, lead guitarist Vinnie Moore, rhythm guitarist and keyboardist Neil Carter, bass guitarist Rob De Luca, and drummer Andy Parker. They had gone through several line-up changes, leaving Mogg as the only constant member, and had disbanded three times. The band also featured former Scorpions guitarist and Michael Schenker Group founder Michael Schenker, who was a member of UFO from 1973 to 1978 and rejoined the band sporadically between 1993 and 2003, when Moore replaced him..