One hook and you knew. Or you wanted to know more. The melody, the beat, the voice, the emotion, the sheer genius — whatever it was that drew you closer to the speakers, held you by the ears and wouldn't let go. That sound you can't get out of your head — it ain't the voices in your mind, nor a one-hit wonder. It's likely one of these nominees, the next musical superstar in the making.

  1. Azealia BanksAzealia Banks

    This Harlem rapper seems to have blown up overnight, playing for host Karl Lagerfeld at a private Chanel dinner in Paris, collaborating with Major Lazer and Scissor Sisters and working with Adele's producer Paul Epworth. And she's only 19.

    Watch Azealia Banks' '212' »

  2. Childish Gambino

    Actor and comedian Donald Glover's rapping alter ego toiled away in relative obscurity until the release of his latest album 'Camp' late last year, meaning this 'Community' funnyman is officially a double threat.

    Childish Gambino's 'Heartbeat' »

  3. fun.

    These Brooklyn indie pop rockers have toured with Paramore and played with Janelle Monae, but nothing tops having your song on an episode of 'Glee' and in a Super Bowl commercial, which this the band's hit 'We Are Young' managed to do.

    fun. Interview »

  4. Jessie J

    After writing for artists like Rihanna, Chris Brown and Miley Cyrus, this Brit started recording her own music which resulted in a debut album that has so far spawned five singles. Not too bad for a singer's first time.

    Watch Jessie J's 'Domino' »

  5. WinnerNeon Hitch

    Like her fellow crooning countrywoman Lily Allen, Neon Hitch used MySpace to get her music out there. She soon grabbed the attention of Benny Blanco and managed to score a hit when she sang with Gym Class Heroes on their song 'Ass Back Home.'

    Neon Hitch Videos, Interviews, More »

  6. Rebecca Ferguson

    She may have ended up as the runner-up on 'The X Factor', but this lady proves that second place just means you gotta work harder. To that end, the singer wrote all of the music for her debut album 'Heaven.'

    Rebecca Ferguson's 'Nothing's Real But Love' »