Former Pioneer Bar cavern redecorated as rocker themepark. Live music, rock karaoke. Mick Jagger and Iggy Pop pics overlook epoxy and pleather. Cutesy cocktails namecheck Blondie and the White Stripes. Supernova drink mixes tequila, champagne, and Red Bull. But Supernova is real rock and not something a TV exec dreamt up on the back nine at the Bel-Air, right?