TNT’s Christmas in Washington holiday special has just added a batch of performers. Hosted by Conan O’Brien, the concert is set to include performances by Diana Ross, Megan Hilty, Demi Lovato, The Voice‘s Chris Mann, and American Idol‘s Scotty McCreery and will premiere on TNT on Friday, Dec. 21, 2012 at 8pm. Psy (real name Jai-Sang Park) will close out the show with a special performance.
This year’s holiday special marks the annual event’s 31st anniversary. Christmas in Washington benefits the Children’s National Medical Center, and among the Washington notables expected to attend are the President and First Lady.