Pink Floyd’s “The Wall” is one of those classics that, even if you don’t know who sings it or what the song is called, you know the song inside an out. It’s been played on radio stations for decades (the album will celebrate its 40th anniversary this year) to the point that even just snippet will be enough to trigger recognition. Now, Alok and Sevenn have taken the classic and re-tooled it for the dance floor with a modern twist. However, what originally sounds like a sample is actually a complete recreation. According to Billboard, Alok recorded a new selection of British schoolkids to sing the…