Wheels on The Bus

Yesterday in swim class I was wondering why Alex sings so loudly?  Man he rocked that "Wheels on the Bus!"  We were in a Thai restaurant two weeks ago and he sang the alphabet at the top of his lungs.  (Just a little embarrassing). Today driving in Camarillo.. Singing at the top of my lungs to the toddler Pandora channel.. I realized where it comes from.  😳  #mybad