American Idol (season 13) runner-up. There were a number of other major changes in the season, from the judges to the format of the show itself including the opening intro, which used the "Gyroscope 2.0". On May 9, 2013, Randy Jackson announced that he would no longer serve as a judge. On May 30, 2013, Mariah Carey and Nicki Minaj also announced they would not return to the judging panel. On August 1, 2013, it was confirmed that Keith Urban would return as a judge for another season. Executive producers Nigel Lythgoe and Ken Warwick were succeeded by Per Blankens, previously of "Idol", the
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?