Watch This Baby Lose Her Mind Over Katy Perry’s ‘Dark Horse’ [VIDEO]

Having a rough morning? Take a cue from this adorable baby and banish that cranky attitude with a little help from Katy Perry's 'Dark Horse'.

In this gem of a YouTube video, one baby was feelin' the struggle of, well, being a baby, crying and fussing around in her car seat -- that is, until one very smart fellow passenger cranked up some Katy Perry. The little girl instantly went nuts, dropping her mouth open and seriously breaking it down, movin' those tiny hands and feet like there is no tomorrow.

But the best part of the video occurs at around the 21-second mark, when Juicy J shouts, "Let's rage!" because wow, does this baby know how to rage. And don't just take our word for it -- check out the adorable ragin' baby rock out to Katy Perry in the video above!

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