Part of the job description for "pop star" seems to include being a teenage heartthrob. One Direction's Harry Styles and Justin Bieber are no exception. These two teens know how to make their female fans go absolutely crazy. Which singer do you think is more swoon-worthy?

Harry Styles woos the ladies with his bright eyes, charming smile and bad boy tats. Oh, and his charming accent doesn't hurt, either. Despite skyrocketing to fame in 2012, Harry remains a down-to-earth guy who chills out with his guy friends in One Direction.

Justin Bieber, King of Swag, is all about being smooth. He did win Selena Gomez's heart, after all. When Bieber isn't serenading fans with hits like 'Baby' and 'Boyfriend,' he's zipping around in one of his hot rods or adding more body ink to his ever-growing collection.

Which pop star leaves you infatuated? Vote below!

Harry Styles

Stuart C. Wilson, Getty Images

Justin Bieber

Kevin Winter, Getty Images