Austra's Katie Stelmanis Has 'Mind Blown' by PS22 Children's Choir Cover

YouTube is full of giggly tweens tackling the latest chart-toppers and a cappella groups paying tribute to Ben Folds , but the pint-sized PS22 chorus are among the site's biggest sensations thanks to their covers of the coolest indie music around. This time the kids put their own harmonious spin to an electro-goth song by Toronto buzz band Austra . Thanks to our friends over at the Grid , we ...