Show Highlight Dr. Horrible's Sing-Along Gym Session Bravo Insider Exclusive! Create a free profile to get unlimited access to exclusive videos, sweepstakes, and more! Sign Up for Free to View Dr. Horrible's Sing-Along Gym Session Neil Patrick Harris reenacts singing at the gym to prepare for Joss Whedon's 'Dr. Horrible's Sing-Along Blog.' Watch the Full Episode
