Reason!!

Reason!! is the 1st opening theme song for THE iDOLM@STER SideM anime. It is performed by 315 STARS.

In Game

 * THE iDOLM@STER SideM LIVE ON ST@GE!

In Adaptations

 * THE iDOLM@STER SideM (anime) - Opening theme song (Episodes 2-12), insert song (Episode 13)

In Concert

 * THE IDOLM@STER SideM 3rdLive Tour GLORIOUS ST@GE! Side MAKUHARI (Day 2)
 * THE IDOLM@STER SideM 3rdLive Tour GLORIOUS ST@GE! Side SENDAI (Day 1 & 2)
 * THE IDOLM@STER SideM 3rdLive Tour GLORIOUS ST@GE! Side FUKUOKA
 * THE IDOLM@STER SideM 3rdLive Tour GLORIOUS ST@GE! Side SHIZUOKA (Day 1 & 2)
 * THE IDOLM@STER SideM PRODUCER MEETING 315 SP@RKLING TIME WITH ALL!!! (Day 1)
 * THE iDOLM@STER SideM 4th STAGE TRE@SURE GATE (Day 1)

CD Recordings
THE IDOLM@STER SideM ANIMATION PROJECT 01 "Reason!!" (sung by: 315 STARS ) THE IDOLM@STER SideM ANIMATION PROJECT 02 "TOMORROW DIAMOND" (sung by: Beit) THE IDOLM@STER SideM ANIMATION PROJECT 03 "From Teacher To Future!" (sung by: S.E.M) THE IDOLM@STER SideM ANIMATION PROJECT 04 "AFTER THE RAIN" (sung by: W) THE IDOLM@STER SideM ANIMATION PROJECT 05 "Over AGAIN" (sung by: Jupiter) THE IDOLM@STER SideM ANIMATION PROJECT 06 "Sunset★Colors" (sung by: High×Joker) THE IDOLM@STER SideM ANIMATION PROJECT 07 "ARRIVE TO STAR" (sung by: DRAMATIC STARS) THE IDOLM@STER SideM ANIMATION PROJECT 08 "GLORIOUS RO@D" (sung by: 315 STARS ) THE IDOLM@STER SideM 5th ANNIVERSARY DISC 01 PRIDE STAR (sung by: 315 ALLSTARS)

Credits

 * Translation