Jennifer Lopez Nipple Slip: Wardrobe Malfunction Heats Up Bologna Concert!

Jennifer Lopez concerts are always eye-popping, titillating events ... but the show she put on in Italy last Thursday took the experience to a new level.

Performing in a sexy sequined suit before a sold-out Bologna, a tricky dance move caused the top of her outfit to shift near the chest, resulting in a nipple slip:

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Of course, this pro's pro doesn't duck for cover. 

After a quick adjustment with the aid of her dancers, J. Lo went right on performing without missing a beat. No word if Casper Smart helped her "adjust" after the show.

Click to enlarge the J. Lo photos above!

[Photos: Pacific Coast News]