We have unintentionally poignant drunken moments most weekends, but lucky for us the cameras weren't rolling that time we dedicated our karaoke duet of Endless Love to our junior high boyfriends and then got into a fight over whose junior high boyfriend was hotter and then left the bar with two men who had the same names as our junior boyfriends. That was a great night because it lives only in our distorted memories, and not on Internet viral videos. Unfortunately for these 11 Celebrities at Their Poignantly Drunkest, the cameras were rolling.