Korean rapper Psy is a big yoga fan…well, if he’s standing in the back of the room he is. Whatever gets you on your yoga mat, I guess. We love his salute to yoga–and what it does for your butt–in the music video for his song, “Gangnam Style.”. Check out the ladies doing Cat/Cow pose in the music video–and just try to resist the urge to get off your yoga mat and dance. Bet your derrière that you can’t!