If you're not up on your young adult celebs, it's pretty easy to confuse fresh-faced former Disney channel star Selena Gomez with ABC Family beauty Lucy Hale.

But here's good way to tell them apart: Whichever one is being pined over by Justin Bieber is Gomez.

Selena Gomez got her start on Disney's 'Wizards of Waverly Place' as a teenage witch trying to figure out her powers, only to later make a break into the music biz and into the Biebs' heart. She's now solo in so many ways and landed a recent movie role in the so-not-Disney film 'Spring Breakers.'

Lucy Hale currently stars on the ABC family murder-mystery 'Pretty Little Liars' and is in the process of launching her own music career. She also appeared in Gomez' 'Wizards of Waverly Place' during its first season, so they have even more in common than we thought.