Whoa! In their third round of Pop Clash, Heffron Drive triumphed once again! The duo faced off against Ariana Grande, and took the win with nearly 65% of the votes! This week, Heffron Drive's 'Parallel' is up against Demi Lovato's 'Really Don't Care.' Which song should win this week's Pop Clash?

Heffron Drive's 'Parallel' has an extremely catchy opening that explodes into an anthemic chorus. It's easy to see why the Drivers immediately loved it! Kendall Schmidt told us it was one of the most challenging songs he's ever written, adding, "It really sort of challenged me to write at the best of my abilities."

Demi has mastered the art of an empowering track -- and 'Don't Really Care' is no exception! The singer's latest track celebrates telling off someone who did her wrong. She's giving her Lovatics a platform to stand up for themselves and move on. It doesn't get more empowering than that! (But just a head's up, Lovatics, the lyric video is mildly NSFW!)

Which song should win this week’s Pop Clash? You can vote for Heffron Drive or Demi Lovato once an hour until the polls close at 3PM ET on Tuesday, May 27.

Listen to Heffron Drive, 'Parallel'

Listen to Demi Lovato, 'Really Don't Care'

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