It looks like series 6,but it's not.
Ten minutes into their opening Mixopolis gig, Mixies drummer Tapsy ventured into a drum solo that lasted five hours, three minutes and thirteen seconds. The solo saw the other Mixies band members leave the stage after twenty minutes and go to the movies to watch The Mixels Movie I and II before returning to stage and rejoining the concert four and a half hours later. one other pic
Here's the link http://www.lego.com/en-us/mixels