When Roger Waters inducted legendary New York City concert promoter Ron Delsener into the Long Island Music Hall of Fame last week, he did so while sporting a black eye and stitches just below the eye.

He joked that it was the result of to much tequila the night before, but apparently the truth is that he fell in the bathroom of his New York apartment and was knocked unconscious. He was taken to New York-Presbyterian Hospital’s emergency room, where he stayed until 5:00 a.m. the morning of the event.