Christi complains to Jill that Kendall learned her solo two days earlier than Chloe when they're supposed to be going head-to-head at competition, in this scene from Episode 2 (Two Can Play This Game) of Dance Moms Season 4.
Clips From S4 E1, Welcome Back...Now Don't Get Too Comfy
Moms' Take: Are the Girls' Just Another Number?
Kendall Learned Her Solo Early
The Girls Won but Abby's Not Satisfied
Full Dance: Just Another Number
Dear Abby: The Girls Should Want to Be Like Maddie