Chicago Sun-Times (20th of May, 1985) - Don McLeese :
...Opening for Madonna were the Beastie Boys, a New York foursome who can be categorized as white punks on rap. Patterning themselves after black rap acts, three of the Beasties spout street rhymes, while the fourth provides the rhythms by manipulating records on a turntable ("scratching" the process is called). Their between rap interplay with the audience went something like this:
"You don't look like you're having fun."
"How many of you want to learn a new dance?"
"If you've got anything to say, c'mon up here."
I thought they were a lot of fun, but I generally enjoy anything that provokes a strong reaction.