The Insider.com

Leona Lewis broke out of the gate with 2007's Bleeding Love ... and then never quite recaptured the magic, or popularity, of that debut single.

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She briefly segued into designing hideous clothes, but has thankfully returned to music and released a new song that's her most promising in years!

Half ballad, half up-tempo revenge jam, Trouble never sounded so damn good -- and by getting help from Childish Gambino (a.k.a. Community's Donald Glover) on the track, Leona not only proves she's tapped into the musical landscape, but has me infinitely more excited for what awaits in her upcoming October release, Glassheart. Listen!