Apparently it took them 15 takes to do this video...but how much rehearsal time??

I think I posted OK Go's first amazing dance video for "A Million Ways" on my blog a while back. Now check out their new video for "Here it Goes Again". This time it's dancing on treadmills!




And in case you missed it, here's the first video again



And this is them doing the "A Million Ways" dance LIVE!