This viral video is a Web sensation and a must-see. Sure, we've heard of cats and dogs that get along, and other natural enemies in the animal kingdom that become pals. But this tops them all.

This vid features a rat and a cat who are best pals. And even though the sight of the rat might make you want to jump on your desk and scream (or maybe that's just us) this rat is actually kinda cute and TOTALLY IN LOVE WITH THE CAT! The cat rolls on his back at one point to play with the rat. Watch it all the way through. Definitely gets our vote for best video of the week.

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