This week on Promoter 101, Featuring: Solo Agency and Isle Of Wight Festival John Giddings, Gersh Agency’s reigning King of Comedy Agent Rick Greenstein, Siren Management’s’ Adam Parsons, and a quick check in with Russian Concert Promoter Semyon Galperin. Plus Steiny and Eventbright’s Sara Mertz breaks down the news of the week from SxSW.