While soon-to-be ex-wife Britney Spears was turned down to a request to appear in a SuperBowl spot (read story here), Kevin Federline has been busy shooting a commercial for Nationwide Mutual Insurance. The ad - which will air during the game on February 4 - shows Federline as the employee of a fast food restaurant who daydreams about making a rap video. "I felt that it was a good time to come out and make fun of myself," KFed says. "I really works for me. I try not to take myself too seriously."