PHOTO CALL: Patti Murin Is Bulletproof, Margo Seibert Pulls No Punches, Amy Spanger Is Fancy and Morgan James Channels Elaine Stritch at Late-Night Skivvies Show

The Book of Mormon's Matt Doyle and Rocky star Margo Seibert joined The Skivvies for their July 26 late-night concert at 54 Below.

The 11 PM evening also included Eric Anderson ( Soul Doctor), Amy Spanger ( Rock of Ages), Christopher J. Hanke ( How to Succeed), Patti Murin ( Lysistrata Jones) and Morgan James ( Motown).

Watch: Krysta Rodriguez, Wesley Taylor and Sophie B. Hawkins Jam Out with the Skivvies (Video)

For further info visit Theskivviesnyc.com.