I'm gonna go ahead and quote Jezebel and tell you that you're gonna need to be canceling your plans for the rest of the day. You'll be watching Beyonce's new video on repeat and basking in its colored-leotard-high-ponytail-quad-drums dance fest.
Sigh. I'll have to apologize to my arriving friends for not getting the house clean. They'll understand.
EDIT: Apparently she says "Grind up On It" instead of "Grind That Pony." I seriously thought that "Grind that Pony" was a new hot dance craze involving swinging your ponytail around (which, to my credit she was doing while she sang it). In fact, I think it is a better lyric, and should be the new hot dance craze. I'm singing it my way from now on.