"My greatest achievement," brags proud dad Jesse Teeters. "The culmination of 2.5 years of parenting. Our first duet."

Teeters and his little daughter collaborating on Piero Umiliani's timeless "Mah Nà Mah Nà" is so adorable, you'll find yourself easily forgiving him for teaching a toddler the lyrics to the theme song of a softcore porn film.