"Buh, Buh, Buh, Letter I"

Okay, so I was a proud Mommy when Lily started singing the "Letter B" song a week or so ago. I thought to myself, 'How wonderful, she's beginning to make and understand the sound that go with the letters.' I was doing a little I've-got-the-smart-kid happy Mommy dance too. And, though I still believe I've got the smart kid, I was put in my place today when I heard Lily walking around singing "buh, buh, buh, letter I!"