Credit: Frederick Breedon IV/Getty Images for ACM Photo: Kellie Pickler at the 6th Annual ACM Honors

If this is true, Dancing With the Stars has finally cast its first American Idol contestant.

According to TMZ's sources, country star and Idol Season 5 alum Kellie Pickler will be competing on DWTS Season 16, along with another country star, Wynonna Judd. They also echoed rumors that Bachelor Sean Lowe and Olympian Aly Raisman would be dancing.

So that's at least four sources confirming Sean Lowe — Us Weekly, HollywoodLife, Reality Steve and TMZ. HollywoodLife had also said Bobby Flay would dance, but that was shot down. According to the New York Daily News, boxer Victor Ortiz has also signed on.

DWTS has never had an Idol star compete, despite the two shows shooting in the same studio and many Idols performing on DWTS Results Shows.

The official DWTS spring 2013 cast will be revealed this Tuesday, February 26 on Good Morning America. Season 16 premieres Monday, March 18 on ABC.

Source: TMZ