At 3:00 AM today, Britney Spears tweeted a link to the music video for her new single, "Till The World Ends," which is basically four minutes of a sexy, mid-apocalyptic dance session between Spears and a horde of hangers-on.

The good? Well, she looks hot! And she seems to be enjoying herself again. The bad? Ironically, some of the dancing—or, rather, seductive hunching and/or arm shaking. Because that pretty much describes the extent to which Spears actually dances in the video.

The bottom line: If Spears is "dancing till the world ends," then we should all be dead right now.

[YouTube]