Abby Lee Miller and Cathy Nesbitt-Stein’s infamous “ Dance Moms ” rivalry is back.

The former co-stars have reunited for a new short-form reality competition series, “Abby vs. Cathy: Hit the 8,” premiering Oct. 27 on ShortVydz.

“We’re very good, [we] play with each other and we’re iconic in the way that we act towards each other,” Nesbitt-Stein exclusively told Page Six in a joint sit-down interview with Miller.

Abby Lee Miller and Cathy Nesbitt-Stein’s infamous “Dance Moms” rivalry is back. (The two are pictured above during a sit-down interview with Page Six earlier this month.) Brian Zak/Page Six

The former co-stars have reunited for a new short-form reality competition series, “Abby vs. Cathy: Hit the 8,” premiering Oct. 27 on ShortVydz.…