media_removed_toofab 102011
Jennifer Lopez is one sexy and extremely busy gal!

The 42-year-old mother of two spent one of her days off from filming "American Idol" yesterday by jetting to Mexico to film a brand new music video.

Wearing super-tight leggings, an equally sexy top, heels and half a head of cornrows, J.Lo looked amazing as she filmed the video for "Follow the Leader" with Wisin and Yandel.

During her downtime on the set, Lopez flaunted her flat stomach in leggings and a sports bra -- while her boyfriend Casper Smart walked around shirtless too.

Check out more behind-the-scenes pics in the gallery above!

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