Her relationship with Leonardo DiCaprio may be on-again, off-again, but model Bar Refaeli's commitment to the legs is unwavering.

Refaeli's legs simply kick butt, thanks to, well, a whole lot of kicking. Her trainer is teaching her all kinds of kicks, and she says they work everything -- the abs, the butt, and yep, the legs. The kicks come from an Israeli self-defense discipline called Krav Maga. Martial-arts moves are part of Refaeli's fitness routine too.

For more on Krav Maga, click here. For more famous hot legs, click through the gallery below.