just loves showing off her famous figure!

The mother-of-one flaunts her envious curves and debuts a new song, "Standing on the Sun," in H&M's just-released commercial for their summer swimwear line.

Bey dons a number of sexy bikinis as she dances on the sandy beach and plays in the water. The singer even rocks a darker 'do -- jet black tresses -- for one portion of the promo.

But don't worry this isn't just shameless self brand promotion -- 25 percent of the proceeds from H&M's swimwear line will be donated to WaterAid, a foundation that helps raise money to bring safe and clean water to some of the world's most impoverished regions.

What do you think of the "Halo" singer's new song and bikini-clad commercial? Sound off below and click "Launch Gallery" to see more sexy shots of Beyonce's H&M's campaign!

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