Birdy – 17-years-old
If you haven't heard of Birdy, you must not be from Europe. The Longer singer took over the continent by storm with her haunting version of Bon Iver's "Skinny Love," which was closely followed by two number one albums in multiple countries. Will 2014 be the year she fully lands her growing empire in the U.S.? If Lorde can do it, Birdy absolutely can make it happen, too.