Sometimes you just have to dance.

That statement couldn't be any truer for Henry Long, a student from the University of Notre Dame who had the urge to bust moves to Sia's "Chandelier" on campus -- while his friend filmed it. Wearing a nude leotard, spandex and a hot pink tutu, Long weaved in and out of his startled classmates, doing his best impression of Maddie Ziegler, the "Dance Moms" dancer featured in Sia's video.

Who knows what Long's so joyful about? Perhaps he got all A's on his final exams, or maybe he's pumped about Sia's Grammy nominations. Either way, you let it out, dude. Your energy is contagious.