Debut by UK hard rock / prog band Babe Ruth. I used to find this all the time when I would dig in Canada.   This is also the most "accessible" way to spin their classic "The Mexican" which is a staple for for b-boy DJs.  It was later successfully covered by freestyle producer Jellybean Benitez and the disco group The Bombers. If shreddy prog jam fests are your bag, check out "King Kong".