country rock and folk rock singers such as gordon lightfoot, joni mitchell, leonard cohen, denny doherty (of the mamas & the papas), david clayton-thomas (of blood, sweat & tears), andy kim, zal yanovsky (of the lovin' spoonful), john kay (of steppenwolf), and ian & sylvia found international audiences. one important example was a winnipeg band called chad allan & the expressions, which had a 1965 hit with a version of johnny kidd and the pirates' "shakin' all over". they would eventually evolve into the guess who, the first canadian rock group to have a no.1 hit that reached the top on the canadian singles chart and the "billboard" hot 100 at the same time, with "american woman" in 1970. their success paved the way for a new wave of canadian singer-songwriters, including stan rogers, murray mclauchlan, bruce cockburn and willie p. bennett.