There's a reason why Kim Kardashian is so popular -- and it has very little to do with ... anything little on her. Great butts are profitable these days. They can help catapult ordinary girls like Jen Selter to Instagram fame and give extraordinary girls, like Pippa Middleton, even more fans based simply on how their backsides look draped in one dress.

Even if you're not as blessed as these celebs, the good news is that there are so many effective exercises out there that target the buttocks, you will not get bored in your workout routine. From jump squats to the bridge, here are 6 of the best moves you can do to tighten and tone your derriere.

 

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