Twenty One Pilots singer Tyler Joseph tried crowd surfing during their set at Reading At Leads Festival. It takes over 2 minutes and 30 seconds for Tyler to come out of the pit area, after being swallowed up by the mass of overly aggressive fans. Once Tyler emerges, articles of his clothing are missing and his shirt is torn.

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I think fans at times are selfish, disrespectful and forget that musicians are human beings, and not tools that fuel our need for entertainment.
Check out the video, in my mind this is borderline assault:

 

xoMarcus