Kiesza — this summer's surprise breakout diva — started dancing ballet when she was three.

She had to give up intensive ballet at 15, after a knee injury, but never forgot the way dance training made her feel. Looking for a new outlet, she got into sailing and joined the Canadian navy, then found a creative home in music. After trying her hand at acoustic guitar, death metal, and working as a behind-the-scenes writer of EDM pop, she rocketed to the top of the U.K. charts in April with "Hideaway," a propulsive song indebted to the big-belters of 1990s dance that's just a touch slower than today's club hits, and all the better to really move to.

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