This is one of those videos that makes you laugh uncontrollably, yet you're not quite sure why. Here, Beyoncé sits with Britney Spears, Lady Gaga and Rihanna as they go through their Number Ones—until an uninvited guest interrupts.

Why is this so funny? I don't know, but it is. Maybe it's the MS Paint-like juxtaposition of the original animation and the cutouts of each girl's head; maybe it's the voices; maybe it's the, "Go, [Diva]! Go, [Diva]!" chants during each of the pop princess' moments in the spotlight; maybe it's the, "You can't sit with us!" Mean Girls reference; or maybe it's this visual:

At any rate, it's hilarious. Plus, a video that incites a Stan War—no matter how ridiculous—is like a cherry on top of the proverbial sundae.

(Thanks to Val for the Fintern-free tip!)

[YouTube]