Some eagle-eyed social media users spotted a sign advertising a Whataburger Dr Pepper Shake and had to know if what they were seeing is true or just a late (and cruel) April Fools' joke.
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But they weren't left in the dark for long.
Whataburger replied to a customer who asked saying, "It is true!"
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It's not clear if the cool treat will be available at every Whataburger.
But it's probably not surprising that the two should pair up.
In January, Dr Pepper started a petition to make the beverage the official soft drink of Texas.
So why not team up with a restaurant that is so beloved in Texas?
READ MORE: Dr Pepper petitioning to become official soft drink of Texas
Did someone say food?! Houston food lovers, unite!