Olivia Munn shares photo of herself wearing the same dress as Jennifer Lopez

By anyone's standards, she's a beautiful woman

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But even Olivia Munn has moments of insecurity - especially when she spots J Lo wearing her dress.

The self-depreciating actress shared a picture comparing herself with Jennifer Lopez  on Instagram. 

'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,' Munn captioned the photo with good humor, poking fun at herself with her 1.4 million followers.