You might not guess it if you saw it, but these maintenance workers are actually members of BYU's Vocal Point, and boy do they have a surprise up their sleeve!
Get more Vocal Point music with this collection of classic hymns!
BYU Vocal Point has been described as an "optical illusion for your ears." Their inventive a cappella style, innovative arrangements, and incredible vocal percussion continue to wow audiences everywhere. They have performed before millions on national television on NBC's The Sing-Off, in concerts, and on youtube.com.