While J. Lo might be known for her bootylicious backside, her sexy, sculpted legs deserve just as much attention. We can only pray we have the dancer legs Jennifer Lopez has at 47 years old. I mean, how is that even fair?

There really must be something in the water she's drinking, because Carrie Underwood's beautiful legs are something of pure magic. If it's not sorcery, it might have something to do with her personal trainer, Erin Oprea, who keeps her legs looking hard via different variations of lunges. Want a leg-sculpting workout worthy of Carrie's training program (complete with lunges)? Try these sexy-legs moves.

Kim is known for her booty, Kylie for her lips, Kourtney for her banging post-baby bod and Khloe for her total body transformation -- but supermodel sister, Kendall Jenner? She's known for her modelesque build and long, lean legs. Considering that she's walked in the Victoria's Secret fashion show more than once, it's safe to say she is total #leggoals.

If there was ever someone to have total leg envy over, it's Blake Lively. Genetically, the sporty celeb was born to rock high heels, miniskirts and short dresses, and those of us wishing we had her naturally muscular build hate her for it (not really, we love you, Blake).

Want Rihanna's beautiful legs? Then you better work, work, work, work, work (sorry, had to). In fact, her legs are so coveted that Gillette insured them for $1 million in 2007, after naming her "Celebrity Legs of a Goddess."

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