I came across an NHK program called Amazing Voice a few weeks ago, and instantly became a big fan.  The program was featuring a French artist called ZAZ on that day.
She is so amazing.

Zaz is in similar line with Adele, I think, as well as Trixie from Black Dub (which I introduced in this blog a few months ago).
As for Adele, I love this Tiny Desk Concert series from NPR radio (this series is awesome – I am subscribed to their podcast as well).  You can also watch the videos on YouTube.  They sound so effortless.  Wish I could sing like that.