THE iDOLM@STER S01 E06 The Decision to Move Forward

Ritsuko's idol unit, Ryuuguu Komachi, with Azusa, Iori and Ami as its members, becomes popular after their debut and gets booked in many gigs, including singing on a music television program. Worried over the other idols' popularity, the Producer decides to have the idols audition for several gigs.