17. St. Vincent, 'Strange Mercy'

Annie Clark's demure attitude gives the appearance that, within this wacky world of music, she belongs to the "sane" crowd. But the subversively sexual and murderous undertones of 'Strange Mercy' may make you think twice about the 28-year-old singer and guitar goddess. From the terrifying visuals of 'Cruel' to the buzz-saw riffs of 'Northern Lights,' Clark's third album will make you beg for mercy -- and another listen. -- C.M.