Broadway got a hip-hop holiday treat this week with the debut of “Bustle Fluffah,” an original music video featuring Andy Karl and the cast of The Mystery of Edwin Drood. The ridiculous rap is just another reason to love the cast of Roundabout Theatre Company’s romping revival, which includes the likes of Stephanie J. Block, Chita Rivera, Will Chase, Jessie Mueller, Jim Norton and Betsy Wolfe. Broadway.com photographer Jenny Anderson went behind the scenes at the video shoot, and she captured all of the nutty Victorian rappers in action. Check out our behind-the-music photo gallery, and make sure to catch the world premiere of “Bustle Fluffah.”