If you have not heard of Grumpy Cat, you are behind the times. This Internet sensation is a sweet cat that has one of the grumpiest faces known to catkind in a really hilarious way.

Her face has inspired probably hundreds of sarcastic memes that make their rounds on Facebook and other social media outlets. Her Facebook page has a picture of her with a quote bubble over it saying, “I had fun once. It was awful.”

Well, one clever teen designed a billboard using the infamous Grumpy Cat to encourage teens not to drink at prom.

Go Grumpy Cat! Watch below for the full story.

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