INTERVIEWSLittle Dragon Team with Kids Choir for Chilling Ballad

For years, the children's choir of Staten Island's PS22 have been delivering choral versions of pop and indie songs by Phoenix, Jay-Z, and Lady Gaga. But it's rare that the actual artist drops by to perform alongside the kids -- Kylie Minogue was a recent guest -- although when they do, they can help the choir deliver of their finest performances.

Tuesday, Swedish electro-pop quartet Little Dragon dropped by the school to collaborate for a rendition of "Twice," and the resulting cover is downright hair-raising: Little Dragon lay out a chilling ballad with nothing more than twinkling piano, but it soon brightens into a soaring, cherubic hymnal thanks to the kids' cheery vocals.

The PS22 choir recently had mainstream attention when they performed on this year's Oscars, so these kids are old-pros by now: it turns out they learned this song in just one afternoon. Nice!

WATCH: Little Dragon & PS22, "Twice"