Baby cries when I sing to her

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Anybody else's baby cries when sang to? I have a really good singing voice so it can't be that I sound awful. It also happens when I play certain songs.

Her eyes start to water and her bottom lip pokes out and she slowly starts to cry 🤷🏽‍♀️ Its cute but at the same time I have to stop singing or playing the song because I don't like seeing her sad.