Uhhhhh.. I have quite a bit.

Favourites: Feist, Owen Pallett, Björk, Sufjan Stevens.
Other good singers: Joanna Newsom, Laura Barrett, Julie Doiron, Reg Vermue, Panda Bear, Kria Brekken, Lizzi Bougatsos, Kat Burns, Seabear, Lederhosen Lucil/Krista Muir, Sandro Perri.