2. Frank Ocean, 'Channel Orange'
Ocean made headlines because of his sexuality, but he made history with this music. The 25-year-old singer's second album is the most exciting R&B breakthrough in recent memory; Ocean evokes L.A. decadence ("Super Rich Kids"), his stripper girlfriend (the nine-minute "Pyramids") and crushing out on a guy ("Bad Religion") over plush, dark-tinted grooves that update Stevie and Marvin for the post-Drake era. His brags about his "great gray matter" aren't just geek-chic bluster: Channel Orange unfurls new mysteries with every listen.