July 8 [16:00 EDT] -- Although Iggy Pop has backed out of his "Roar" tour due to a shoulder injury, the tour continues on, with Sponge, the Nixons, and the Reverend Horton Heat on the bill.

And it hasn't been uneventful. On Sunday night, in Tulsa, Oklahoma, Sponge singer Vinnie Dombroski got arrested and fined after the show for repeatedly using obscenities onstage.

Spokespeople say sponge got to the gig a bit late and was unaware of an earlier warning that each expletive would cost $500.

Between his fines and the bond for his release, Dombroski paid more than $5,700.

The "Roar" tour moves on to Dallas, Friday.