A sample of the promotion video for the opening song of the summer anime Ro-Kyu-Bu! is being streamed on youtube. The opening song is called "SHOOT!" and is sung by a new idol unit called RO-KYU-BU!, made up of the five voice actresses for the basketball team in the show: Hanazawa Kana, Okura Yui, Hikasa Youko, Iguchi Yuka, and Hidaka Rina. "SHOOT!" is composed by fripside's sat with lyrics by I've's KOTOKO. RO-KYU-BU! will also be singing the show's ending song which is written and composed by Haruko Momoi. Ro-Kyu-Bu! is sports comedy about basketball.
Here is the previous announcement of the formation of the unit:
Image ©Sagu Aoyama／ASCII MEDIA WORKS／TEAM RO-KYU-BU!