"Bleed It Out" is a song by Linkin Park
Linkin Park singer Mike Shinoda in Kerrang! Magazine: "I wrote the lyrics to this about 100 times. it's always frustrating as a lyricist to come in with a new version that you spent hours on and have the band tell you that it's not there yet. in one case, they listened to my lyrics for 30 seconds and told me to start over again. that was pretty hard. it felt like I was bringing in the lyrics, getting punched in the face and then going back to the drawing board. When it finally came together I said to the band 'I don't think anyone but us could have made a song like this'. It's a f--king bizarre death-party-rap-hoedown!"
It is featured in Guitar Hero 6 as a playable track.