Multiple Grammy-winning and current hip-hop kingpin Kanye West is bringing out the big guns for this tour, by inviting a whole bunch of great singers. This comes after West captured four rap Grammy Awards, but lost other four in categories he had been nominated. As a matter of fact, he lost the rap collaboration award to Barbadian bombshell, Rihanna. But they are going together on a tour, along with N.E.R.D. and Lupe Fiasco. Fiasco is…