"It came to me in a dream," Dave Mustaine reveals of "Public Enemy No. 1". Given how infectious and incredible the first single from "TH1RT3EN" is, that's one pretty awesome dream??_It's the perfect gateway track to the album, which happens to be Megadeth's best since "Countdown To Extinction". Megadeth has teamed up with ARTISTdirect.com to bring you this behind-the-scenes clip of the making-of the video. Check it out at ARTISTdirect.com.