Bokura no LIVE Kimi to no LIFE - Love Live! School idol festival

"Bokura no LIVE Kimi to no LIFE - Love Live! School idol festival" is a high quality rip of "Bokura no LIVE Kimi to no LIFE" from ''Love Live! School idol festival''.

Joke
The rip uses the intro of the "We Are Number One" music video. Later at 0:20, the saxophone notes are re-arranged in the tune of Bokura no LIVE Kimi to no LIFE.

This is likely due to "Bokura no LIVE Kimi to no LIFE" being the first, or 'number one', Love Live song.