Rammstein at the Toyota Center

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When the house lights came up at the end of Friday night's Rammstein show, the crowd headed toward the exits and the custodial crew of the Toyota Center hit the floor. Mops in hand, they began the process of cleaning up the mass of sweat, foam, and confetti that covered the arena floor. It was the type of scene that wouldn't feel out of place in the aftermath of a LMFAO or Ke$ha concert, but the crowd that arrived at the venue hours earlier weren't there to party rock or get sleezy. PHOTOS BY GROOVEHOUSE