MILWAUKEE (CBS 58) -- Renee Herzing is the president of the Herzing University system.

She's also the lead singer of a band named Hell on Heels.

"The guitar player is my husband, so this is really a lifestyle," Herzing said. "If you come in our house it looks like a music studio. We have two pianos, a whole recording studio, so instead of settling down and watching TV at night, we go to the studio and rock out."

Herzing and her group played Summerfest for the eighth time Friday.

They rocked out at the Briggs and Stratton Big Backyard stage.