Abby Lee Miller allegedly wasn't invited to participate Dance Moms: The Reunion, and an insider explained why.

The famed dance instructor exclusively spoke to Page Six about her alleged run-in with the dancer-turned-pop diva.

Abby Lee Miller might have just earned herself the top spot in this week's pyramid. In a video that was first posted on Thursday, Feb. 27, the Dance Moms star was approached in what appeared to be ...

Abby Lee Miller is back for season 2 of Mad House! In PEOPLE's exclusive first look at the highly anticipated second season of the reality show, the Dance Moms alum, 59, won't be mincing words as she ...