Listen to In the End of Time (A Cappella Version) online. In the End of Time (A Cappella Version) is an English language song and is sung by The Original Broadway Cast Of School Of Rock. In the End of Time (A Cappella Version), from the album School of Rock: The Musical (Original Cast Recording), was released in the year 2015. The duration of the song is 2:11. Download English songs online from JioSaavn.