Three photos of Karen O the world could have lived without, circa 2006 (Photos by Jen Carlson... sorry)

Karen O & Co. are the latest to join the war on smartphones—at their recent Webster Hall show, the band displayed a large sign that read: "PLEASE DO NOT WATCH THE SHOW THROUGH A SCREEN ON YOUR SMART DEVICE/CAMERA. PUT THAT AWAY as a courtesy to the person behind you and to Nick, Karen and Brian. MUCH LOVE AND MANY THANKS! YEAH YEAH YEAHS."

But if you don't Instagram everything, how will your friends be jealous of your life? Karen O did make one allowance, enforcing the rule after two songs had been performed. Following that, she demanded that fans pocket their iPhones. We applaud the effort, but what if this type of law enforcement by bands doesn't work... might we recommend a venue jail? At Lollapalooza '94, organizers had a "jail" set up for certain bad behaviors (like crowd surfing)... maybe venues should consider this for those who hold their phones up during shows. Because it's only going to get worse...

A few years ago we asked if cameraphones were killing concerts, and 66% answered "yes" in our poll. Now with Instagram, Vine, and other social media platforms encouraging the practice—and people photographing shows with their gigantic iPads (you are The Worst!)—we're guessing that number will only continue to rise as those who want to enjoy life in the moment become even more outnumbered.