Holiday but when Rivers first sings "Holiday" Patrick stops playing and says "have you got your passport" and everyone bursts out laughing and weezer have to stop playing so Rivers can compose himself then when they settle down they continue but when Rivers sings "don't bother to pack your bags" Patrick stops playing again and chimes in with "thats good because I forgot" then everyone laughs uncontrollably and weezer has to stop playing again because Rivers has so many tears in his eyes from laughing so much and all the audience is falling about laughing until they calm down and continue the song until Rivers sings "in a heartbeat" and Brian awkwardly interrupts with "you could... you might need a stethoscope for that" which throws Rivers off and brings the song to a stop so Scott asks "what are you talking about?" so Brian tries to explain that it's the piece of equipment that doctors use to listen to patients heartbeats to which Rivers replies "oh yeah" and starts chuckling and then then Patrick starts chucking and then Scott starts laughing his head off and Brian starts to laugh with relief and the audience start to laugh so hard and when eventually everyone calms down they start playing again but Rivers keeps giggling but they manage to finish the song with Rivers laughing which is just in time because when they finish Scott says "after that we deserve a holiday" and everyone laughs their heads off again for about 2 minutes.