Diddy visited “Jimmy Kimmel Live!” to promote his latest role as executive producer of the Oscar-nominated documentary Undefeated. Showing off his striped socks and half moon hair part, Mr. Combs spoke about throwing one of the best parties at the Playboy Mansion, what he did for Valentine’s Day (“I turned off the lights and lit some candles”), his son’s football scholarship, and how he got involved with the film. “I cried like four times,” admitted Diddy, who will attend the Oscars on February 26.