Who is your favourite female singer?

Question as on the thread title. Who is your favourite female singer?

Amy Lee comes to mind.

Probably Lacey Sturm. Not many female singers embark to scream as well as she can.

Adele

Either Stevie Nicks of Fleetwood Mac (Seriously, listen to this! https://www.youtube.com/watch?v=_Dsh9M6qnhE Stevie has the voice of an angel.) or Emily Haines from Metric (https://www.youtube.com/watch?v=jq3-wZs64n4).

Lzzy Hale from Halestorm. They are mostly rock / metal but here is a ballad by them. Not to mention she is hot.

Spoiler: Dear Daughter 

https://youtu.be/WHPVb-qMzsY

How has Joan Jett not made this list yet.

Stevie Nicks and Karen Carpenter (The literal voice of an angel. Listening to her always makes me happy)