Jemma Rix. I don't know if I can classify her as my a "discovery" but I certainly "discovered" her for the first time when I watched Wicked, just after Christmas.

She plays the role of Elphaba (the wicked witch) and she's got this amazing voice and she's also incredibly beautiful, even with green paint on. I actually did a random YouTube search and personally, I think she is one of the best Elphabas in the history of the play.