He proved his comedy chops in Get Him to the Greek, but can P. Diddy do drama? Yeah, probably not. ---

What's new tonight:
Hawaii Five-0 (CBS) Tonight, Sean "P. Diddy" Combs guest stars as an NYPD detective out for revenge against a Hawaiian crime kingpin. Revenge for what? And why thousands of miles out of his jurisdiction? Not throw out a spoiler, but ... he may have finally found the real killers of Biggie Smalls.

Also new tonight:
Dancing With the Stars, Cougar Town (ABC); How I Met Your Mother, Mad Love, Mike & Molly (CBS); Chuck, The Event  (NBC); House, The Chicago Code (Fox); Stargate Universe (Syfy); Pawn Stars (History); Bethanny Ever After (Bravo); The Secret Life of the American Teenager (ABC Family); WWE Raw (USA); The Hard Times of RJ Berger (MTV); The Bad Girls Club (Oxygen); Nurse Jackie, United States of Tara (Showtime); Conan (TBS)

Preview: P. Diddy acts his ass off in tonight's Hawaii Five-0: