Andy Grammer (singer). Was supposed to dance with Peta Murgatroyd, who is injured and out for this 21st season.

Currently rumored to be competing...Paula Deen (TV chef), Nick Viall (The Bachelor/Bachelorette)

Bindi Irwin is partnered with Derek Hough.

"Len will not be returning as a judge this season on Dancing With the Stars due to his schedule as a judge on Strictly Come Dancing in the U.K. and the birth of his new grandson," Wade said. "He still might be involved in the season at some capacity, but we will have to wait and see. We are planning on having great guest judges for some shows to join Bruno [Tonioli], Carrie Ann [Inaba], and Julianne [Hough], and I'm sure we will see Len in the ballroom again soon."
http://www.enstarz.com/articles/1037...e-capacity.htm