The Pussycat Dolls are an American pop girl group, and dance ensemble founded by choreographer Robin Antin. The group originated in 1995 as a burlesque troupe based in Los Angeles. After attracting national attention, Antin eventually negotiated a record deal with Interscope Records in 2003, and the troupe was re-cast as a music group, comprising lead singer Nicole Scherzinger, Melody Thornton, Jessica Sutta, Ashley Roberts, Kimberly Wyatt, Carmit Bachar. Subsequently the group also diversified into Reality TV programs, a Las Vegas act and venue, merchandising and other ventures overseen by Antin, Interscope and their partners.

The Pussycat Dolls achieved worldwide success in 2005 with their album PCD, which debuted at number five on the U.S Billboard 200 Chart, and produced the hits "Don't Cha", "Buttons", and "Stickwitu", the latter of which earned the group a Grammy Award nomination. Following the departure of Carmit Bachar in March 2008, the group continued as a quintet, and in 2008, released their second studio album Doll Domination, which included the hits "When I Grow Up" and "I Hate This Part". Throughout their rise to fame, the group has been criticized for its overtly sexual image and explicit dance routines, and for the over-emphasis on the lead singer Nicole Scherzinger, who sings nearly all of the group's lead and background vocals.

The group was selected to open for Britney Spears on her spring 2009 arena tour. (via Wikipedia)