Trapeze

Trapeze were an English rock band formed in March 1969, by vocalist John Jones and guitaristbassist Glenn Hughes, and drummer Dave Holland. The band had a fairly fluid line up, finally dissolving in 1994, and although they never found commercial success themselves, several members went on to join better known bands, including Deep Purple, Black Sabbath, Whitesnake, Judas Priest, and Uriah Heep.

source: Wikipedia