Katy Perry Accepts Britney Spears Impression Challenge

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It all started when Britney Spears did a spot-on Woody Woodpecker impression on Instagram. Now, she's throwing down the gauntlet to fellow songstress Katy Perry.

After Katy complimented Britney's video, Britney challenged Katy on Twitter, writing,

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To this, Katy responded that she is accepting the challenge, upping the ante by promising to reveal her best impression on the MTV VMAs red carpet.

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It's anyone's guess who Katy will mimic -- maybe Britney herself? And one has to wonder -- will this become the next Ice Bucket Challenge?

The MTV VMAs red carpet starts at 7 p.m. ET/PT.

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