Legendary Megadeth frontman and lead guitarist Dave Mustaine debuted his new signature Dean guitar at this year's NAMM show a couple weeks back in Anaheim, California.  Dubbed the USA VMNT Holy Grail, the guitar sports a custom, blood red paint job emblazoned with a 24k gold leaf finish, as well as a uniqe design idea from Mustaine himself.  Rather than breaking down all the details for you here, we'll let Dave describe the guitar himself.  Check out the YouTube clip below to hear Dave's own take on his new signature guitar.  (The part about the Holy Grail guitar starts about 4 minutes in)