Song parodies have been around forever. Now that everyone under the sun as video editing ability and a YouTube account, you can see more of them. Now NASA is in on the action.

LMFAO's hit song 'Sexy and I Know It' is probably one of the most parodied songs online. It's not surprising. The lyrics and music are pretty simple, so it's easy to take some lyrics about anything and make them fit.

The latest is a group who decided to take advantage of the Mars Rover success and do a version called 'We're NASA and We Know It'. Is it gloating? Why yes it is, and why wouldn't they? They landed on Mars!