PS 22 chorus videosBack in December, Anne Hathaway, soon-to-be Academy Awards co-host, surprised the viral singing sensations in the P.S. 22 Chorus, announcing that they'd be singing at the Oscars. In honor of the kids' upcoming biggest performance yet, we've combed through music teacher Gregg Breinberg's YouTube channel, where all of P.S. 22's awesome videos are housed -- and there are a lot, over 450! -- to find our favorites.

The group's diverse catalogue includes songs by Lady Gaga, Cat Stevens, and some special celebrity guest appearances. Check out which ones made our list after the jump!