D Unknown Magazine MILKSHAKE FESTIVAL WELCOMES OSTGUT TON, THE RECORDLABEL OF BERGHAIN, AS A STAGE AND ALSO BRINGS AN ODE TO GEORGE MICHAEL AND WHAM Milkshake Festival Saturday 29 and Sunday July 30th at the Amsterdam Westerpark brings as a stage Wham’bam Thank You Ma’am, an ode to Wham, in…