• Dance Moms

Dance Moms (Photo : Facebook/Dance Moms)

"Dance Moms" season 6, episode 21 will be the last installment that will feature Maddie and Mackenzie Ziegler on the hit Lifetime reality TV show.

In "Maddie and Mackenzie Say Goodbye," the Ziegler sisters will be responding to some of the most intriguing questions that have ever been thrown their way. To add to this, they will also be unveiling some secrets from the set of the show, as well as their personal lives.

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The Ziegler siblings will be joined by their ALDC coach Abby Lee Miller who is expected to give her last message to her two students.

In the teaser released by Lifetime for episode 21, it was confirmed that the sisters will also relive some of their most memorable experiences on the set, during competitions and more.

Additionally, the Ziegler sisters will also talk about their coach Miller and will share information about her that not many people know of.

The clip also showed how close Maddie and Mackenzie are to their coach. Towards the end of their interview, Miller teased the former about the kiss that she shared with fellow professional dancer Gino a few seasons back on "Dance Moms."

Mackenzie also sat on Miller's lap and teased her coach that she's like Mrs. Santa. Since Santa Klaus is known for granting kids' Christmas wishes, Mackenzie didn't waste time to ask Miller for what she wants this holiday season.

"I would like a Rolex please," Mackenzie told Miller before they all burst in laughter.

Meanwhile, the previous episode of "Dance Moms" centered on the other members of the ALDC saying goodbye to the Ziegler siblings.

On Tuesday night, Brynn Rumfallo broke into tears when she gave Mackenzie a touching message. The newest member of the junior elite team said that she doesn't know what she would do without Mackenzie.

Kendall Vertes became equally emotional when she tried to give a message to her best friend Maddie. The two were together on the show for several years.

Nia Frazier, Kalani Hilliker and JoJo Siwa also said that they will miss Maddie and Mackenzie terribly.

"Dance Moms" season 6, episode 21 will air on Lifetime on May 24 at 9 p.m. ET.