Actor, comedian and improviser Jesse Teeters has done many things - but he calls this video "My Greatest Achievement".

And it's easy to see why. Because in it, he and his two-and-a-half-year-old daughter perform their very first duet. And it's the most adorable version of The Muppets song 'Mahna Mahna' since... well, the original:

Congratulations, Jesse! You're our new favourite awesome musical dad.

(Via Blame It On The Voices)

Also on HuffPost:

Loading Slideshow...