1000 Musicians play Nirvana
These people have done many other covers, another favorite of mine is when they cover White Stripes Seven Nation Army. But this Nirvana cover is even better. You do not have to like Nirvana but they deserve you respect because they basically invented a whole new genre of music.
I never used to be a big fan of Nirvana but I am now. This is a great homage to the Great Kurt Cobain.