Scottish hard rockers Nazareth only had one hit single in America, but it was a memorable one. “Love Hurts” was their cover of the lesser-known Everly Brothers song, featuring over-the-top emotive vocals from Dan McCafferty. Some consider it the first real metal ballad but their run of hits was much longer in the UK, with both covers and originals like the rowdy shout-along “Hair of the Dog.” The band remained an institution in the UK, celebrating their 40th anniversary in 2008. While McCafferty announced his retirement in 2013 due to health issues, Nazareth continues with singer Carl Sentence.