It's a known fact that the Beastie Boys have been very much against the licensing of their music for advertising purposes. However, it seems they've made an exception, and one that's quite worthwhile. The Rude Goldberg toy the Princess Machine recently released their newest advert, which shows some pretty crafty young girls inventing their own wild contraption using any means necessary to get it to work. The overall tone of the ad is that the world needs more engineers instead of princesses, and I can't help but agree.

The ad has gone viral on the mommy blog circuit, and with 'Girls' from the Beastie Boys reworked into a super spunky girls rule song, we can see why! Watch the advertisement below - you'll be smiling by the time it's over.