Not sure if it was played this year, but I had stuck in my head all last year at FLR Zombie Nation's Kernkraft 400... hummed it to a dozen or two people before someone finally knew what the hell I was talking about and kindly gave me the song name
The variation at FLR this year was great and I didn't hear (besides required songs such as We will rock you by Queen) songs replayed more than twice. It was great and I really hope the music continues to be varied!