Leon Jackson enter, and also on the high-profile dismissals of judge Louis Walsh and presenter Kate Thornton, to be replaced by choreographer and "Grease Is the Word" judge Brian Friedman and "Big Brother's Little Brother" host Dermot O'Leary respectively. Before hiring Freidman and Minogue, Cowell had apparently approached colleague and fellow "American Idol" judge Randy Jackson, and close friend and "X Factor" mentor Sinitta. Walsh, however, was quickly reinstated, with Friedman becoming the show's choreographer. Jackson's prize as winner was a £1 million recording contract. His first single release was "When You Believe", arranged for the finalists by composer Stephen Schwartz and
Who Killed Idol? providing music for songs. "STUPiG" is written and arranged by Takeshi Ueda of AA= and The Mad Capsule Markets; "Hi" is written by Akihiro Namba of Hi-Standard; "MURA-MURA" is written and arranged by Noriaki Tsuda of Kemuri, who also plays bass on the track as well; "BiSimulation" is written by Toru Hidaka of Beat Crusaders; The guitar solo of "primal.2" is performed by Hisashi of GLAY, who is also a fan of BiS. "GET YOU" is a collaboration track with fellow Avex idols Dorothy Little Happy and is taken from the collaboration single of the same name. Who Killed Idol?