Thanks to Source Magazine we can finally give a valid reason as to why Drake and Diddy were involved in an altercation. It seems to be over the rights to music ... a beat that may lead to Drake winning a Grammy. Apparently, producer Boi-1da made the "0-100" beat for Diddy and after Diddy turned it down, he sent the beat to Drake. During the altercation Diddy also caused Drake to injure his shoulder, an injury that was already in existence before the altercation.