Bebe Rexha shared photos after receiving stitches for her injury. Some experts do have some theories - and point to social media as one of the things to blame. She then picked up a T-shirt cannon and shot it into the crowd as she told them: “Stop throwing things at the artists.”Singer-songwriter Charlie Puth called the trend “disrespectful and very dangerous”. This trend of throwing things at performers while they are on stage must come to an end. If this weird trend ends up leading to changes in the level of surveillance and security at concerts, we all lose.