Gathered backstage at the Grand Ole Opry during Kellie Pickler's celebration for her and dancing partner Derek Hough's recent win on "Dancing with the Stars" were, from left: Steve Buchanan, EVP of the Opry Entertainment Group; Larry Fitzgerald, Pickler’s manager; Butch Spyridon, Nashville CVB; Pickler; Hough; Pete Fisher, Opry VP and GM; and Gordon Kerr, CEO of Black River Entertainment, Pickler’s record label. Pickler wasn't just celebrating her and Hough's win on "Dancing with the Stars," however -- the singer also performed her new single, "Someone Somewhere Tonight," for the crowd. Pickler will be shooting a video for the song around Nashville this Thursday as well -- a busy week in the country capital, with the CMT Music Awards tonight and events scheduled throughout. “This has been an amazing night,” Pickler told the crowd at the Opry. “Anytime I’m on the Grand Ole Opry stage, this is the biggest stage in country music, and in my opinion the biggest stage in the world."