Part 4 of Who Wants to be a Millionaire's 10th Anniversary Primetime Special! Regis Philbin returns to host the show for an 11 night event on ABC. Using all of the same rules as the format for the syndicated show, contestants race the clock for $1 Million! Fastest Finger returns to qualify contestants for the hotseat, in addition to a celebrity guest at the end of the show who can win $50,000 for charity by answering one question correctly.