American Duos musical number, only to have Nigel, no longer having to force them through the competition, calling it one of the worst performances he ever saw. Star James Roday, who plays Shawn Spencer, co-wrote this episode. It is a send up of "American Idol", and Tim Curry plays the Simon Cowell-esque British judge Nigel St. Nigel. Gina Gershon plays Emilina Saffron, who is a caricature of Paula Abdul. In the episode, Gus says (of Randy Jackson), "That guy's not black, he's Latino. There's a difference," comparing Jackson and the third "Duos" judge, Zapato. According to Roday, "American Duos" has the highest
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?