It’s not enough to just follow the cast of “Dance Moms” as they live on the dance floor.“Dance Moms” is back for the back half of Season 7 and so are some former ALDC stars. In a few short weeks Chloe and Christi Lukasiak will make their comeback to the Lifetime series. Ahead of the big episode, and Tuesday’s airing of the second installment this season, find out where your favorite