There are at least 5 bands here. 1) The first incarnation was a little known US psyc/garage band in the mid sixties. playing up tempo r&b. 2) The most successful is a British classic metal band from the 80's who recorded sessions for Tommy Vance's Rock Show, released two EPs: The Bitter End in 1985 and Hot For Love in 1988, and also released 'One Strange Night' , a full album in 1990 on Active Records. 3) A Czech RAC/NS metal band.