Some of the biggest names in the music industry are tired of looking out from the stage and seeing their fans watching their concerts through their cell phones. Adele recently told a fan to to quit recording her. Before he passed away, Prince, rather infamously, got so annoyed with cell phones at his Louisville Palace concert that he played some of the show in the dark. It's a growing and persistent problem and some singers, like Alicia Keys, are doing something about it. They're using the new Yondr pouch to essentially ban cell phone use during their shows. This is how it works!