Avenged Sevenfold and Linkin Park

Ok maybe I'm looking to much into this but seriously has anyone noticed how close linkin park and avenged sevenfold were to crossing paths but never have. I mean seriously Chester Bennington and M. Shadows have both sang with the lead singer from korn but never with each other. Also linkin park AND avenged sevenfold both went on tour with metallica AND atreyu yet again they haven't toured with each other. Now I honestly think they need to go on tour together not only are they my two favorite bands but ithink mike shinoda's rapping with both Chester and shadow's vocals would sound amazing not to mention all the other things LP does with syn and zacky's guitars. That sounds like an awesome concert does it not?