As any devotee of the #swolelife will have it be known, leg day is never to be skipped. Working quads, hamstrings and, above all, those glorious glutes, is fundamental to possessing a bangin' bikini bod.
That fitness imperative has not been wasted on the many lovely ladies of Instagram. Supermodels like former Maxim cover girls Jasmine Tookes and Elsa Hosk have been popping squats, social-media sirens Amanda Lee and Cassandra Davis have been experimenting with resistance bands, and Instagram's current beach body queen, Alexis Ren, has been flaunting the benefits of bodyweight training.
Whatever their technique, the proof of their backside gains are, as they say, in the pudding. All possess the rounded, mind-bogglingly pert derrières that fill Lululemon leggings and grace fitness magazine covers the world over.
Below, behold 10 booty-full Instagram videos of fitness babes working their glutes like it's their damn job.