The Mirror Ball Trophy is up for grabs once again! On Tuesday morning “Dancing with the Stars” officially unveiled the star-studded Season 20 cast of the hit ABC series. The show’s 10-year anniversary installment will feature stars of all kinds, from a “Hunger Games” actress to an Olympic gold medalist. But one celebrity has yet to be revealed -- Witney Carson's partner!

According to "DWTS," the 12th and final dancer of Season 20 will be revealed at “a later date.” But that hasn’t stopped us from speculating who the mystery celebrity could be!

Before the Season 20 cast was revealed, it was speculated that Chris Soules, the current star of “The Bachelor,” would be showing off his smooth moves on the dance floor.

"At this point, why not?" he said after being asked by E! if he would consider joining the ABC dance competition. "I went through ‘The Bachelorette’ and never thought I'd do that and did it and it was a great experience. Now being the Bachelor, it's been an extraordinary experience... I'm open to a lot of opportunities; I'd be willing to consider these sort of things. But I'm going to do what's best for me and do what's right and what I feel is right for my future."

We even toyed with the idea of Kaitlyn Bristowe, the most recent contestant to be eliminated by Soules from “The Bachelor,” joining the “DWTS” cast after she divulged her love for the show on Twitter.

“Hanging back stage with the ‘DWTS’ cast, and I’m all like, put me in coach!! I miss dancing,” the 29-year-old Vancouver dance instructor tweeted. Bristowe then had her prayers answered when Hough, Season 20’s surprise addition, swooped in a gave her a little dip.

But would “DWTS” cast anyone from “The Bachelor” knowing that Season 19 of the reality hit series had the lowest rated premiere in “Bachelor” history? It’s also important to note that typically “DWTS” casts a male contestant to perform with a female, so Bristowe may have to sit Season 20 out.

E! Online teased before the official announcement of the 2015 cast that football player Malcolm Butler from the Patriots and Robert F. Kennedy Jr. were also in the final talks of appearing on “DWTS.” So perhaps we'll see one of them shake it out in the upcoming installment.

Check out the complete roster below of the Season 20 contestants:

  • Patti LaBelle partnered with Artem Chigvintsev
  • Riker Lynch partnered with Allison Holker
  • Charlotte Mckinney partnered with Keo Motsepe
  • Michael partnered with Peta Murgatroyd
  • Willow Shields partnered with Mark Ballas
  • Rumer Willis partnered with Valentin Chmerkovskiy
  • Noah Galloway partnered with Sharna Burgess
  • Suzanne Somers partnered with Tony Dovolani
  • Robert Herjavec partnered with and Kym Johnson
  • Redfoo partnered with and Emma Slater
  • Nastia Liukin partnered with Derek Hough

Who do you think will fill the 12th and final slot of “DWTS”? Sound off in the comments section below with your theories and don’t forget to tune in to the Season 20 premiere of “Dancing with the Stars” when the hit ABC series airs Monday, March 16.

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