Bad Apple but it's All Star by Smash Mouth【マッシュアップ】

"All Star" is a song by American rock band Smash Mouth. It was released on May 4, 1999, as the second single from their album Astro Lounge, and it is one of the group's most successful songs, peaking at No. 4 on the US Billboard Hot 100, No. 2 in Canada and No. 4 in Australia.

http://www.nicovideo.jp/watch/sm35961117