Jenna Dewan asked about infamous Justin Timberlake and Britney Spears dance-off on Watch What Happens Live

One of the all-time best stories in gossip history is the dance-off that happened between Britney Spears and Justin Timberlake after they broke up. This was pre-TMZ. There were never any pictures. But while there’s never been any actual verification that it went down like that, the idea that thei...