I watched Mike do this on one of the shows. I think it was at the Weenie Roast 2011. I believe he is using an auto-tune which can raise the pitch of your vocals. But perhaps Astat is right with the vocoder. I haven't looked into that yet.
Post your Linkin Park tattoo's here if you got any! :D I want to see them! Here's mine I got shortly after falling in love with A Thousand Suns ^_^ Linkin Park is my favorite band, and always will be…Continue