I don't know if it's just because of Billboard's audio quality, the girls that day or a combination of both, but these acoustic performances are 10x better than the Idolator ones (which weren't bad to begin with)
Very impressive on both performances. It takes something special for a song like "Boss" to sound like it has vocal merit. The "We Know" performance really showcases how far they've come since X-Factor. It's exciting to see how much they can grow since they're all mostly just 17.