Most Iconic Live Music Moments on Instagram: "Follow (me) @epicliveperformances to tune into the most iconic moments in live music history …. System of a Down appeared on SNL on May 7, 2005 with Johnny Knoxville hosting, performing their anti-war track “B.Y.O.B.,” a song already packed with profanity, so the producers used a five second delay to censor anything that slipped out . But mid performance, Daron Malakian loudly ad libbed a “fuck yeah!” outside the planned lyrics and the censors missed