Hilary Duff is back with her bubbly, brand-new single "Sparks," and we can't stop whistling along. Taylor Swift, on the other hand, will forever slay with her 2010 hit "Sparks Fly." Whose "Sparks" song is your fave?

After giving us a taste of her fresh new sound with the magic that is "All About You," Hilary Duff took a tiny break from music before dropping "Sparks," the infectious, upbeat club-like anthem that will have you jammin' out all summer long. We can't get enough of her breathy voice as she belts out the chorus over the thumping beat. "Turn the lights down low and kiss me in the dark," H. Duff sings on the refrain. "'Cause when you're touching me / Baby, I see sparks." We're seriously loving this one.

Taylor Swift's "Sparks Fly" (off of 2010's Speak Now) is basically the embodiment of everything we love about the singer. The anthem-like track boasts some of her best lyrics (we'll forever love the line "Give me something that'll haunt me when you're not around") and proves that T. Swift can rock out with the best of 'em. Plus, we always love getting a little nostalgic with Country Taylor and that twang.

Whose "Sparks" song do you like better? Team Duff and Swifties, cast your vote for Hilary Duff or Taylor Swift in the poll below.

Watch Hilary Duff's "Sparks" Lyrics Video

Watch Taylor Swift's "Sparks Fly" Video

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