"I'm really excited that Jc is going to sing during our first dance. It is, of course, very meaningful to me. He has the best voice I've ever heard in my entire life. And it looks like he might be doing it as a duet with Kristin Chenoweth." Lance Bass reveals his former 'N Sync bandmate Jc Chasez will be performing at his wedding in Los Angeles on Saturday (20Dec14). Bass will exchange vows with boyfriend Michael Turchin during a ceremony officiated by the couple's friends, Joanna Garcia Swisher and Jamie-Lynn Sigler.