Decibelle (formerly Estrojam) is a 501c3 NFP music and culture festival that promotes equality and was established in 2003. Past headliners have included, Wanda Jackson (First Lady of Rock who toured with Elvis in the 1950s and 1960s), Nina Hagen, Concrete Blonde, Cat Power, The Gossip, Peaches, Amy Ray of the Indigo Girls and Margaret Cho. The hip hop, post punk, disco, and dance-punk band ESG played their final show on Friday, September 21, 2007 at Chicago's Abbey Pub, during the Decibelle festival.