Being upstaged in a highly unexpected manner reportedly inspired Black Sabbath's oddball (and mercifully brief) hidden track 'Blow on a Jug,' which can be found at the end of the song 'The Writ' on their 1975 album 'Sabotage.'

According to black-sabbath.com, lead singer Ozzy Osbourne was perplexed when at a 1970 festival Free, Traffic and Sabbath were all outshined by none other than Mungo Jerry of 'In the Summertime' fame, who yes, featured a jug player. "He was playing f---ing jugs and he stole the day! So it just shows you it doesn't matter what anybody thinks...after Mungo Jerry we didn't have a hope. Blowing on f--ing jugs!"