No. 19: Nikki Yanofsky
Birthday: February 8, 1994 (age 16)
Why She's Hot: Canadian jazz-pop singer Nikki Yanofsky might not be a household name yet in the U.S., but the 16-year-old up-and-comer has dazzled our northern neighbors with two successful solo albums, a no. 1 song ("I Believe") on the Canadian Hot 100 and buzzed-about performances at the 2010 Winter Olympic opening and closing ceremonies. Yanofsky's star will continue to rise when she tours the States this fall and releases her "Nikki" album overseas later this year.
Video Below: Nikki performs "Over The Rainbow" at Billboard HQ