Singing our names

Do all Moms and Dads do this? Our Mom and Dad will sing to us, but not just sing ... they replace words from songs with our names. So they might sing "Maggie Maggie Maggie get your cat treats here" to the tune of "Lolly Lolly Lolly get your adverbs here" from School House Rock. They do this for all of us, even when it doesn't really make sense. Is this normal Mom and Dad behavior, or do they need professional help?