I've been listening to Pendulum - Immersion (their latest album), and I believe that if Linkin Park would do a show with Pendulum, it would sound awesome. Think of the crowd that "Live in Texas" attracted.
I really believe this could be one of their best shows ever if they do it together. Mike Shinoda could produce some mixes with Pendulum.
If you don't know what I'm talking about, go listen to Pendulum, and especially to their latest album - Immersion. It could blow your mind. Well, together they would.
Linkin Park ROCKS!!! :)