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K-Fed has really slimmed down and the former back-up dancer for his ex Britney Spears is working on his moves again. K-Fed is working with Justin Timberlake's choreographer, Marty Kudelka.

K-Fed wants his dancing comeback to become a reality show. He is a participant on VH1's "Celebrity Fit Club: Boot Camp," and weighed in at 232 pounds. Shar Jackson, his former girlfriend and mother of two of his four children has said everyone will be surprised at how much weight he lost. She was a fellow contestant on the show.