You’re getting ready to sing at karaoke, but the lyrics that pop up on the screen aren’t the ones you’ve been singing in the shower. Science has a fancy term for misheard lyrics: mondegreens. And this video from The Science of Us explains exactly why you hear “lonely Starbucks lover” when Taylor Swift actually croons “long list of ex-lovers.” We can blame our brains for trying to make sense out of the nonsensical, and music for words that always seem to bleed together. But you’re still singing the correct lyrics when you belt, “Ma ma se, ma ma sa, ma ma coo sa.”

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