Coldplay were on Jimmy Kimmel last night and performed SIX SONGS at the Pontiac Garage, unfortunately only two aired, however it is better than nothing. Check out "Viva La Vida," and "Violet Hill" respectively.
In related news...apparently Justice has a done a remix to "Violet Hill," that sounds nothing like "Violet Hill" at all and as Coldplay put it "completely unrecognizable, but cool." Check it out here
http://hypem.com/artist/coldplay+remix+justice