Seagulls! (Stop It Now)

[Le Panda du Mal]

This is 6 years old now but I still consider it the finest moment of the Star Wars franchise (together with the 1978 Holiday Special of course).

 

[Mouse]

Yep, love it every time I see it. And now it will be in my head for days.

 

[Rodders]

Some people have too much time on their hands. Great fun.

 

[Droflet]

I hang my head in shame as I admit that's the first time I've seen that. What a rip-snorter.

 

[KGeo777]

I saw another one like that where Darth Vader without his helmet is singing some kind of bluegrass song with Luke smiling as he does it. This is more sophisticated though.
There was also a spoof of a Star Trek TNG episode where Picard says "set a course for Halifax!"
Data looks to his pants and says "someone painted my bum white."

 

[BT Jones]

@Le Panda du Mal, my 14-year old son sings this every week or so. It's a full-on earworm.