Rockin' Robin originally performed by Bobby Day in 1958, covered several times by many other artist i.a. Michael Jackson.
He rocks in the tree top all day long
Hoppin' and a-boppin' and a-singing his song
Rockin' robin Tweet Tweet Tweet
Rockin' robin Tweet, tweedle-lee-dee
Go rockin' robin
'Cause we're really gonna rock tonight
It's been stuck in my head for several weeks now - Enjoy ;)