Got to see them live for the second time in my life last Saturday, they are something else... it was a unique experience to see such amazing musicians perform that way.
It resembled led zep back in the day, Omar was amazing (he IS god damn good) and Cedric as crazy as usual.
Got to see Kaiser chiefs and bloc party, pretty decent bands IMO but nothing compared to Omar and Cedric's show.
Also R.E.M performed at the same festival here in Argentina, it was an amazing show, full of hits and they also displayed pictures of Obama and Michael said they support him and hope for change.

any other Mars Volta fans here?