The Daddy Song is a number Al sings to Kelly and Bud, in order to keep them from voting him out of the New Market Mallers in the Season 5 episode "The Unnatural".
He claims he learned it when he was their age and hoped it would get them to change their mind and not vote him out. Though, it was unsuccessful and he spends most of the championship game on the bench.
Later in the episode, he is able to force Peg and the kids to sing a slightly different version in order to convince him to bat for them again.
Lyrics[]
D is for D many pies I make you
A is for the apple in my eye
D is for D dish you ate the pie in
D is for D apple of my eye
Y...because I love you...
Put them all together...
They spell... "Daddy"
Lyrics 2nd version[]

Al enjoying his family suffer as they sing the Daddy song to him
[Peggy, Bud, Kelly in unison and unenthusiastic]
D is for D many pies you made us
A is for the apple in his eye
D is for D dish you made the pie in
D is for the apple in his eye
Y...because we love you...
Put them all together, they spell...
[Al]
Make me feel it
[Peggy, Bud, Kelly in unison]
"Daddy"