Moms, what silly/sweet/ or unique songs do you sing to your baby/children?!?

I "sing" to her every time I change her diaper. I sing "It's time to change the diapy, diapy, diapy It's time to change the diapy riiiggghhht now." and "Brianna loves her vitamins, vitamins, vitamins. Brianna loves her her vitamins, just she does!" She smiles when she hears that because she knows what's coming. She also likes when I sing Old McDonald, Elmo's World and "Everybody wants to go to heaven" by Kenny Chesney.