Paramore is here to remind you... that women rock the hardest. The band won Best Rock Song for their jam "Ain't It Fun," making Hayley Williams the first woman to score that honor since Alanis Morissette in 1999.

This is the band's first Grammy, although they have been nominated several times in the past, as Williams pointed out in a tweet earlier this week. They beat out Beck for "Blue Moon," the Black Keys for "Fever," Ryan Adams for "Gimme Something Good," and Jack White's "Lazaretto."

"Ain't It Fun" comes off of the act's self-titled fourth studio record -- the first since the departure of Josh and Zac Farro -- an album that Williams and Co. said redefined Paramore as a band.

"The whole making of this album was a rediscovering of ourselves as a band and as friends," they wrote in a release. "It was a process that allowed us the freedom to explore new territory artistically and to liberate ourselves as musicians, singers, as people.... This album is us.”

Despite not making it to the actual awards show, rest assured that Paramore are celebrating the success of their reinvention full-force -- at least according to Williams' Twitter.

So, apparently, is eternal cheerleader Taylor Swift. History is being made tonight, guys, and the real show hasn't even started yet. We're guessing even more women will be kicking ass and taking names as the night wears on.