MusicTracks 15 of Our Dream Rap/Rock Dream Collaborations By Dylan - February 2, 2017 0 630 FacebookTwitterPinterestWhatsApp Green Day & Wiz Khalifa Do we even have to say anything for this one? Wiz is Wiz, and Green Day is Green Day. If they made a song together and they didn’t call it “Green Day,” I would be surprised and personally offended.