Smash Mouth. It was a 90's tour thing Sugar Ray, Gin Blossoms - "Under the Sun," I think?Lead singer of Smash Mouth was hammered. It was embarrassing. Mark Mcgraff and the lead of Gin Blossoms came out to sing over him as he was incoherent. Bonus points: I posted on Twitter saying that I hope the lead singer gets help, because it was terrible. The guitarist of smash mouth decided to reply and make a dozen excuses for him. Mark McGrath suggested that he not try to fight people on it.