VIDEOS: Matt Doyle, Nick Adams & More Perform with The Skivvies at 54 Below

THE BOOK OF MORMON's Matt Doyle, Nick Adams, Tituss Burgess, Lesli Margherita, and Leslie McDonel joined undie-rockers The Skivvies (Lauren Molina and Nick Cearley) for their show at 54 Below last night, Setp. 23, performing an array of mashups. Check out the performances below!

The Skivvies, a comedy-pop duo don't just strip down their musical arrangements, they literally strip down to their underwear to perform their distinctive mashups and eccentric originals for cello and ukulele, with touches of glockenspiel, melodica, and a surprising array of under-used instruments. Award-winning singer-actors Lauren Molina (Marry Me a Little, Sweeney Todd, Rock of Ages) and Nick Cearley(All Shook Up) became YouTube sensations as The Skivvies, with living room videos that displayed their powerful harmonies as well as their powerful abs.

They also have a single and music video directed by Augusten Burroughs, bestselling author of Running With Scissors. They will be joined by special guest stars who will strip down and rock out. Expect a hilarious evening of genre-hopping pop perfection.