Olivia Munn has BRILLIANT reaction after wearing the same dress as Jennifer Lopez

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Olivia Munn showed she isn't above having a little fun at her own expense after she and Jennifer Lopez wore the same dress.

The Newsroom actress tried on the short sparkly number after J-Lo sported it in a magazine - and it seems even she conceded that the chart-topper knocked it out of the park.

Olivia Munn.
Olivia Munn (Jordan Strauss/Invision/AP)

Pre-empting any 'Who wore it best?' articles, Olivia posted a picture on Instagram showing the stars side by side in the dress.

And she wrote: "I tried this dress on the other day and then saw @jlo wearing it in a magazine and thought 'Oh, THAT'S what it's supposed to look like'."

Talk about handling a situation gracefully!