"baby maybe Koi no Button (KOTORI Mix) - Love Live! School idol festival" is a high quality rip of the KOTORI mix of "baby maybe Koi no Button" from Love Live! School idol festival.
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At 0:14, the track is mashed up with the song "Plug In Baby" by Muse. In addition, from 2:59 to the end, the 7 GRAND DAD theme can be heard quietly playing in the background.