Not just a gaggle of Giorgio Moroder disciples, the Scissor Sisters are so '70s they rip off the Muppets (check "I Can't Decide" and imagine Fozzie singing backups). And yet, this follow-up to '04's Scissor Sisters is far less frivolous. That debut sounded like a few hipsters had stumbled across the right loops and stage names to birth a one-off goof. On Ta-Dah they attempt to turn that goof into something lasting. How lasting can slap-bass workouts inspired by '80s movies about skiing be? Like it or not, we're about to find out.