Beyonce writhes around in a bikini as she debuts new song, ad

And likely ended up with sand in very uncomfortable places ...

Beyoncé is all about corporate synergy. Her recent Pepsi commercial was not only an homage to all things Queen B, but it also premiered her song "Grown Woman." Now, she's using her deal with deal with H&M to tease more new music. On Thursday, Bey released a 90-second ad for the affordable clothing retailer set to "Standing on the Sun," a ditty off her forthcoming album.

The video itself is in keeping with the spirit of H&M: It's trendy yet economical. Beyoncé, sporting a variety of bikinis and other summer wear, cavorts on a beach in the Bahamas while flinging sand and surf, and whipping a variety of blond and black wigs back and forth. If you like to watch the chanteuse in slow motion, this is the video for you.

The clip concludes in what may or may not be a nod to the Ewok party scene from "Return of the Jedi." As fire blazes around her, the chanteuse smolders in a headdress with a post-spinal surgery feel to it.

And because we can't get enough of Beyoncé and her lovely armpits, here are more shots from her H&M campaign ...