He knows what's up

Payton likes to sing. Yesterday we were in the car and he was singing one of his cute little songs. I couldn't tell if he was repeating "Mommy" over and over again or if he was saying "money." I turned to him and said, "Are you saying Mommy?" He literally yelled out, "NO!" Then I said, "Are you saying Money?" He gets a big smile on his face, says "YES" and continues singing, "Money, money, money, money.."