Jesse Teeters and his two-year-old daughter unveil their first duet for the public. He calls it "The culmination of 2.5 years of parenting." Adorable! On the off chance you're not familiar with the song, see the most popular performance here. -via reddit
See more about baby and kids at NeatoBambino
Citation wikipedia, so take it with a grain of salt...
http://en.wikipedia.org/wiki/Mah_N%C3%A0_Mah_N%C3%A0
edit: removed double link.