Promoter 101 #23 - Solo's John Giddings, Gersh's Rick Greenstein, Siren's Adam Parsons

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.