There's video from a web feed online that shows what theMETALLICA/ LADY GAGA Grammy performance should've sounded like. Some Romanian Metallica fan club called 'RoLoad' posted it, and they say it's from a web feed that had working audio. It's weird that the sound would've been cool online but not on TV, but it looks legit. Could be computer wizardry we don't know, but recently Lars Ulrich says he hopes they can do more with Gaga in the future. Here is the full interview ROLLINGSTONE.COM