Starscream would make one helluva death metal vocalist, that's for sure XD. I love how Prime looks utterly disgusted- you can see him puffing his mouth under his mouth-plate, haha! XD
I can't really tell if Megatron is cringing or smiling while winking at Starscream. It is a little unsettling to say the least.
I was thinking more like Chuck Jones, but that's because of Starscream's mouth and the opera singer in that one Bugs Bunny cartoon.