Sangrea, left, and Salty Vulgaire  of the Boulder Burlesque perform to the Amy Winehouse song "Back to Black" at the Sinners Ball-Masquerade
Sangrea, left, and Salty Vulgaire of the Boulder Burlesque perform to the Amy Winehouse song "Back to Black" at the Sinners Ball-Masquerade Party last year. (Courtesy photo)