Tickets for the Euro leg go on sale tomorrow. And then December 9th for the US. Tomorrow she also joins Mariah Carey, Patti LaBelle, Chaka Khan, Vanessa Williams, and Teyana Taylor for ‘VH1 Divas: Unsilent Night,’ which airs Dec 5th at 9pm ET. JoJo is about to show 'em how to cut up a stage vocally. Can't wait.