Happy Feet is a song in Mafia II.
Lyrics
Happy feet!
I've got those hap hap-happy feet
Give them a lowdown beat
And they begin dancing
I've got those
Ten little tapping toes
And when I hear a tune
I can't control my dancing heels
To save my soul
Weary blues
Can't get into my shoes
Because my shoes refuse
To ever grow weary
I keep cheerful on an earful
Of music sweet
'Cause I got those hap-happy la-de-da-da