Following in the grand tradition of, uh, Jet ... The Fratellis' "Flathead" is the new soundtrack to your favorite dancing neon silhouettes. Watch the new iTunes trailer here. Not impressed? This is much cooler. iGIF points us to iConcertCal, an awesome new app for your iTunes. Download the program here, install, and open the Visualizer (under the View tab). iConcertCal ...