FORT COLLINS, Colo., June 16 (UPI) -- Smash Mouth frontman Steve Harwell launched into an expletive-laden tirade at a concert in Fort Collins, Colo., on Sunday.
The 90s rock band, best known for songs like "Walkin' On the Sun" and "All Star," was performing at the Taste of Fort Collins food and music festival when people started throwing pieces of bread onstage.