Now all grown up, dancers Brooke Hyland, Chloe Lukasiak, Jojo Siwa, Paige Hyland, Kalani Hilliker, Kendall Vertes and moms Jessalynn Siwa, Kelly Hyland, Jill Vertes and Kira Hilliker returned to Lifetime for a rehashing of "Dance Moms" most dramatic moments and a conversation about life since then.