Gene Simmons, the lead singer of the rock band Kiss, makes an unannounced appearance at a fundraiser concert at the Brennan Rock & Roll Academy on Saturday, March 30, 2013, in Sioux Falls, S.D. (AP Photo/Dirk Lammers)

Photo by: DIRK LAMMERS

Gene Simmons, the lead singer of the rock band Kiss, makes an unannounced appearance at a fundraiser concert at the Brennan Rock & Roll Academy on Saturday, March 30, 2013, in Sioux Falls, S.D. (AP Photo/Dirk Lammers)