It’s Miley Cyrus vs. Demi Lovato in the Semi-Finals for the Hottest Stars of 2014! Miley trumped over Australian rapper Iggy Azalea in Round 1, with a 60.33% majority, while Demi took a landslide win against Katy Perry, booting the 'Birthday' singer out of the competition with 66.48% of the votes. Smilers and Lovatics, now it’s time to get your head in the game and prepare to back up your fave. In this battle of blonde versus brunette, only one pop star will be left standing.

Miley Cyrus might be having her biggest year yet. With her smash hits ‘We Can’t Stop’ and ‘Wrecking Ball’ — not to mention her famously wild concert and awards show antics — the 21-year-old has transformed from a former Disney star into a household name. The ‘Adore You’ singer spent the better part of the last year jet setting around the world to promote her latest album and perform for her loyal Smilers on her arena tour, and will soon feature in her very own behind-the-scenes documentary. Despite a few minor personal setbacks, Miley has seen unparalleled success from the 'Bangerz' era. She’s on fire!

Demi Lovato is an unstoppable force of pop. In between promoting her fourth studio album ‘Demi’ and advocating the awesome message of girl power, the purple-haired pop star has been jumping from city to city performing her Neon Lights Tour and planning her upcoming Demi Lovato World Tour, set to kick off in September. Oh, not to mention she took the title of PopCrush Prom Queen of 2014 (for the second year in a row), and entered the Pop Clash Hall of Fame with her catchy tune ‘Really Don’t Care’ feat. Cher Lloyd. Demi is a hard girl to beat, and for good reason!

Miley Cyrus and Demi Lovato both have burning hot careers behind and ahead of them, but who is most deserving of the title of Hottest Star of 2014? You can vote for Miley or Demi once per hour until the poll closes at 12PM ET on Monday, July 7. The winner of this round will move on to face another competitor in the final round of Hottest Star of 2014.