"Dancing with the Stars" is premiering its 21st season soon. Just like previous seasons, names of celebrity contenders were released prior to the first dance-off. The latest addition to the roster is reality TV star, Kim Zolciak.

A lot of reality star names have been thrown out prior to ABC's official announcement of "Dancing with the Stars" contestants. While none of those names panned out, it is true that there will be a reality star in the new season. "The Real Housewives of Atlanta's" Zolciack has just been cast for the reality dancing competition. She will be dancing with professional, Tony Dovolani.

The show does not kick-off until the 14th of this month but confirmed contestants have already started showcasing their dance moves. Some of the male contestants danced to Silento's "Watch Me" and did the "Whip/Nae Nae" dance. Zolciack is not to be outdone, showing off her own version of the twerk in a "DWTS" promotional video.

The 37-year-old star reposted to Instagram a snippet of the video, where she was wearing a black-and-white polka-dotted top plus a skirt and where she was seen holding on to a Mirror Ball toward the end. The video was captioned, "I'm so excited!!!! DWTS! This video is totally ME...I LOVE HAVING FUN and I'm always up for a challenge!! We will be on this journey together. #SmileLaughEnjoy #LiveInTheMoment."

Zolciak is the fourth Housewife to compete in the show. Miami's Joanna Krupa was in season nine, Beverly Hills' Lisa Vanderpump in season 16, and NeNe Leakes in season 18.

Othe celebrities already confirmed for the new season are Bindi Irwin, Victor Espinoza, Nick Carter, Carlos and Alexa PenaVega, Chaka Khan, and Hayes Grier.

A full list of professional dancers is expected to come out before the show starts. But Karina Smirnoff has been confirmed to be making a comeback, while Peta Murgatroyd might have to exit (at least for a week) because of a medical issue.

The dance-offs for the Mirror Ball trophy starts on Monday, Sept. 14 as "Dancing with the Stars" season 21 premieres on ABC.