"No Singing Mommy"

I started taking my boys to a new "mommy and me" class. During this class, there is music time. Today, while all the other kids were singing with their moms, Zachary was covering my mouth and saying "no singing mommy." This isn't the first time that he's asked me not to sing. I know I'm not a great singer, but I can't believe that I am that bad! He's only 2 and already embarrassed by his mom :)