Not a day goes by that hundreds, maybe thousands, of people upload their own versions of Lady Gaga's music onto the Web. We've brought you everything from a Brazilian 8-year-old singing 'Bad Romance' on national television to a little boy's homemade spin on the hit, consisting of just a dream (and a banana). Now, we've got some 'Telephone' for you. It seems Gaga's latest single is her most versatile yet, with covers coming from across the music spectrum -- from classical to... Metallica? See and hear for yourself after the jump.