Although Estelle (Jan. 18) has been off the musical radar in pop culture for some time, is there anyone who can truly forget the almost supernatural enchantment of "American Boy," featuring none other than Kanye West? Detailing a transcontinental romantic affair, the song managed to sound both Frank Sinatra classic and rhythmically new, and both European and, well, American. A singer, songwriter, rapper, record producer, and actress, Estelle might be off the radar, but she's still doing it all.