Originally Posted by Buff

Dude, that's Sia. You don't know Sia? She's got the best pipes in music right now. She was the singer for Zero7, which is one the best trip-hop/downtempo groups ever. Try these:

Zero7/Sia - Destiny: https://youtube.com/watch?v=FobL7mzRons

Sia - Blow it all away: https://youtube.com/watch?v=r6AxgutrP4Q

Sia - Breathe Me: https://youtube.com/watch?v=hSH7fblcGWM

Sia/Zero7 - Distractions: https://youtube.com/watch?v=2Jj-7pYFzto

She's got a ton of great music, mostly chill stuff.