 He toured and recorded as bassist with Cher, Tina Turner, James Blunt, Shakira, Christina Aguilera, Billy Idol, Badly Drawn Boy, and The New Radicals.Krivtsov and the House Band (Rafael Moreira (lead guitar), Paul Mirkovich (keyboards), Jim McGorman (rhythm guitar) and Nate Morton (drums)) toured the United States and Australia with Paul Stanley (from KISS) in October/November 2006 and April 2007, respectively.Before immigrating to the United States, Krivtsov was a band member of the No.