[If you're not already a fan of Lady Gaga, this might convert you. Here she performs onstage with Metallica. Lest we forget she also sang the national anthem at the inauguration of the President SB SM] https://www.youtube.com/watch?v=Dj18EYDN0u0 https://www.youtube.com/watch?v=HezPdHTwdGA Could Metallica pull this off?