Finally, a YouTube time-suck guaranteed to delight you with repeated viewings. If, by the end, your jaw is not scraping the floor, you will be sporting an ear-to-ear smile of gee-whiz amazement.

The band OK Go made viral video history back in 2006 with their goofy treadmill choreography. For one of their new tunes, "This Too Shall Pass," they hired pals, who by day work for NASA and the Jet Propulsion laboratory, to execute a mechanical feat of genius inspired by Rube Goldberg contraptions. The vid was posted Monday after the band's brief battle with their label EMI, which originally wouldn't allow the video to be embeddable.

It's extraordinary geekery with one potential setback: the mesmerizing visuals may just eclipse the music. As one commenter on YouTube posted today: AMAZING! but did anyone actually pay attention to the song?

- Michele Siegel

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