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AUG 29, 8PM
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Jennifer Lopez, American Idol

FOX via Getty Images

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Jennifer Lopez looked rock-solid and bombshell beautiful during American Idol's Live Top 7 performance show last night, despite the fact that ex Marc Anthony had officially filed for divorce just hours before. Now that's a superstar.

Fellow judges Randy Jackson and Steven Tyler had to notice the "Dance Again" singer as she worked a black illusion and horizontal leather cutout dress from Catherine Malandrino's Fall 2012 collection, sky-high black Louboutins and a fierce but simple 'do.

The most noticeable change to her look was...

A big ol' cocktail ring where there used to be a wedding ring—she didn't give off a single hint that anything was out of step. Now there's a diva who knows how to move on.

J.Lo may be wearing a bondage-style dress, but from her sexy and confident vibe all we see is a free woman.