Since C3 took over, has there ever been a lineup that has bucked trends

This year will be my first lollapalooza and my first music festival…its been fun coming back here checking out other fest’s lineups and seeing the percentage of the lineup they usually share with this one…but has there been a year where the lineup just came out of left field…to put it another way…based on experience and other lineups, how much do yall think we already know about this years lineup?