Jason Derulo and James Maslow are facing off in the semi-final round of Hottest Star of 2014! Jason Derulo beat out Macklemore in Round 1 with 58.43% of votes, while James Maslow edged Cody Simpson out of the competition with 53.53% of votes. Now, Jason and James are battling it out against each other in the next round. Which pop star hottie has your vote?

Jason Derulo is dominating those airwaves, with his hits 'Wiggle' and 'Talk Dirty' virtually inescapable from radio -- not that we're complaining! 2014 is totally the R&B star's year, and we can't get enough of his insanely catchy tracks, and neither can his fans. 'Talk Dirty' (the album) quickly became the 24-year-old star's first album to land in the Top 5 charts, and it's not hard to see why. Crank that volume up!

James Maslow has enjoyed a pretty kickass year himself, waltzing his way into our hearts on 'Dancing With the Stars' (#TeamJeta!) with his skill and finesse (and let's be real, those abs). The Big Time Rush hottie is more than just a triple threat -- he also has a heart of gold, as evidenced when he re-created the prom for one of his biggest fans who has Down Syndrome. So sweet!

Which singer has your vote? You can vote for Jason Derulo or James Maslow once per hour until the poll closes on July 7 at 12PM ET. The winner of this round will go on to battle it out against another competitor in the final round and will be one step closer to be crowned Hottest Star of 2014.

Watch James Maslow Play Big Time Improv With Big Time Rush