44-year-old Arnett clearly picked up some moves while filming Teenage Mutant Ninja Turtles, even if all he seems to do in that film is lark about with Megan Fox and generally be aghast at giant talking crime fighting reptiles.
We understand that the above makes it look like he's doing a Michael Jackson impression, but trust us it's karate. We really wouldn't want to get on Gob Bluth's bad side.
Also, watching Arnett and Fallon faux-smack talking with each other is something we could watch all day. These two need their own show/movie.