No. 5. Jackie Evancho
Birthdate: April 9, 2000 (age 11)
Why She's Hot: Pittsburgh's Jackie Evancho placed second in 2010's season of "America's Got Talent," and her "O Holy Night" EP made the child star last year's top selling debut artist. No small wonder - as Evancho's spellbinding, operatic vocals possess a power and poignancy that often moves listeners multiple times her age to tears. Aside from covering classical standards, Evancho is adept at piano, flute, and songwriting. She co-wrote a song with superstar producer David Foster on her 2011 debut full-length, "Dream With Me."