Idolator’s Hottest 30 Under 30: 6-1

We’ve reached the end of our Hottest 30 Under 30 list today (as if you couldn’t tell by the heat emanating from your computer screen). This week we’ve tipped our hats to the young artists making their mark on the music scene right now. So far we’ve celebrated everything from a glitter bomb and a sparkling American Idol alum to a Harajuku Barbie. And now we finish our list with a California girl, a Canadian crooner who knows how to take a punch and a country girl who always gets the last word. See who came in first as the hottest young pop star walking the planet.