Things are getting bloody over at Dunder Mifflin as The Office's Andy Bernard (Ed Helms) surprised his co-workers on the hit NBC series' October 7 episode by entering the workplace in costume to serenade Jim, Pam, Michael Scott and co. with "The Ballad of Sweeney Todd." Bernard is readying to play Anthony in a Scranton community theater production of Stephen Sondheim's terrifying Tony-winning musical, Sweeney Todd: The Demon Barber of Fleet Street. The rest of the episode finds the Office crew attending a performance of the bloody good show where Bernard tackles the classic ballad "Johanna." In hilarious Office tradition however, the performance doesn't quite play out as planned. The episode is a must see for Office and Broadway fans alike. Attend the tale below!