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We can't remember a better day in pop music history: Katy Perry's "Roar" and Lady Gaga's "Applause" have officially dropped! The only other day that even comes close would be the the 2003 MTV VMAs—the Britney/Christina/Madonna triple kiss. We're still thinking about it.

Let it be known that we're all about the major girl power going on here. We have both "Roar" and "Applause" on repeat, and we're equally pumped about both Lady Gaga's ARTPOP and Katy Perry's Prism... But we know that's not the case for everyone.

So in the spirit of healthy debate—leave the death threats at home, guys—we have to ask: Whose single is better: Katy Perry's self-empowerment anthem, "Roar"? Or Lady Gaga's new dance floor banger, "Applause"

Vote below and let us know.