Mash ups may be a bit 2004, but when they're done right...they can blow the plastic underwear off grandma.

Chris Cornell from Soundgarden/Audioslave/Temple of the Dog/Chris Cornell is one of my favorite vocalists of all time.  One is the song that got me into Metallica.  One is also a song from U2 that Johnny Cash once covered.

He says in the intro, that he was googling the lyrics to U2's One & came across the Metallica lyrics.  He mashed them together to create a pretty interesting version that even your grandmother would appreciate...once she finds out where those pesky plastic undies went.