performance and putting it up in front of people who weren't expecting the performance where they were. it's very funny to have somebody stand up in the middle of a very normal situation and start singing. ♪ and to dance ♪ >> i love, love, love that idea. i always felt that it would be fun to do, but that i could never do it with a straight face. ♪ to change our lives and reach teach ♪ >> it's very original and it's a little subversive. you've got that element of, oh, i've never seen that before. so i love this. i like musicals. >> as simple as it may look, breaking out into song in class took a fair amount of planning. mike and his band of pranksters picked the largest lecture hall they could find, which turned out to be a chemistry class. >> the night before we sort of set up how we would go about it. so the day of the prank, we