"Party," the Kanye and Andre 3000–featuring track from Beyoncé's 4, very quickly became known around Vulture HQ as the "swagu song." Now, courtesy of Bey's third music video in a month, an official definition for swagu: (n.) the ability to host a trailer-park fiesta in crazy technicolor fur getups and still look amazing. The video for "Party" is almost exclusively interested in pre-baby-bump Beyoncé's many trashy-glam outfits, and, no surprise, she rocks them all: the hotpants, the leopard-print bustier, the Muppet vest — even the butterfly hair wings. Jay-Z protégé J. Cole hops on for Andre 3000 in the remix, and he and Bey share a nice moment on the back of a rusty truck. Also on hand are Solange, as the party's D.J., and Kelly Rowland, who loves Beyoncé enough to submit to bunny ears. (This part is adorable.) One more thing: Dumpster swimming pools, still cool! Swag(u).