The Ziegler sisters' bittersweet goodbye to their longtime dance coach, Abby Lee Miller, and the rest of the ALDC will be seen in the finale of "Dance Moms" season 6.

The special throwback episode will feature only Maddie and Mackenzie as they sit down with Abby to talk about their experiences while dancing for the Abby Lee Dance Company.

Based on the trailer for the upcoming episode, titled "The Final Curtain," the daughters of Melissa Ziegler Gisoni gamely answer questions from some of their fans. But Abby seems to be a little hurt when the girls appear to downplay her contribution to their careers as their dance coach.

Maddie can be considered as Abby's favorite student based on her accomplishments in her entire run on "Dance Moms." She also had the opportunity to appear in different high-profile projects, including a cameo appearance in "Pretty Little Liars" and "Drop Dead Diva." She also starred in several music videos of Grammy Award-winning artist Sia, and will star in the movie "The Book of Henry" with Naomi Watts.

Meanwhile, Mackenzie landed a role in Nickelodeon's "Nicky, Ricky, Dicky, & Dawn."

As the Ziegler sisters look back on their past performances on the dance reality show such as their duet from the episode titled "She's a Maniac" in season 3, they will also reveal what is in store for them after they depart from the show and the ALDC.

According to a press release from FOX, Maddie will join Nigel Lythgoe, Jason Derulo, and Paula Abdul in the judges' panel of "So You Think You Can Dance: The Next Generation," which premieres on May 30. Mackenzie, on the other hand, has yet to announce her plans after exiting "Dance Moms."

The season finale of "Dance Moms" season 6 is slated to air on Tuesday, May 24, on Lifetime.