Martina McBride has signed on to host and perform on CBS's annual Home for the Holidays special, airing Wednesday, December 21. The show celebrates the joys of adoption, and stars like Katherine Heigl and Denise Richards will be on the show talking about how adoption has affected their lives. Several children in need of homes will be profiled in a special segment. In addition, Mary J. Blige, Justin Bieber, OneRepublic and Gavin DeGraw will perform on Home for the Holidays.
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