This is surely every celebrity’s worst nightmare.

Superstar Katy Perry made the ultimate social media mistake when she tweeted a video of her dog, Butters, without realising that her phone number was clearly displayed on his tag.

The singer quickly realised her mistake and deactivated the number – but not before thousands of fans descended upon it and tried to get her to hear their best singing impressions.

We can only assume Katy will be checking her tweets twice over before posting anything in future! 

And on another note, how adorable is Butters?

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