Described by Justin Timberlake as "the best singer in the world right now," Jessie J has received the kind of hype that could suffocate the careers of lesser fledgling artists before they've even begun. However, backed up by a thriving songwriting sideline (she penned Miley Cyrus' number two Billboard smash "Party in the USA"), her debut album, Who You Are, reveals she's more than capable of coping with the pressure. Blessed with an astonishing voice, she shifts effortlessly from emotive, tender restraint to hurricane-force powerhouse in the space of mere minutes. But Who You Are is more than just a showcase for her impressive set of pipes. Produced by Dr. Luke (Pink), Toby Gad (Fergie), and the Invisible Men (Sugababes), it's a highly inventive, genre-straddling affair which boasts at least half-a-dozen potential chart hits.