Take a hint, Mommy

I love to sing. However, I am a terrible singer. It's okay, I know that's true, but I still love to sing (though I don't really like others to hear me). Well, Lily always seems to enjoy it when I sing. I'll finish a song, and she'll ask "More?" I knew I liked this kid! Anyway, today we were watching a video where they sing Old McDonald so I was just singing along like I always do. Lily, who was sitting right next to me, puts her hand over my mouth and firmly says "NO." I guess I was disrupting her video, but how crazy is that! Even my 21-month-old doesn't like my singing now! Am I really that bad?