Sacha Baron Cohen's Ali G character is such a wanker, but what a funny wanker he is! In this clip, he reassures a pro-choice lesbian activist couple, "I love lesbians--I have loads of your videos," tells marchers "I's totally into abortion--I've been responsible for at least five," and yells "Free Nelson Mandela" in the middle of a rally. But it's his addition of beat box noises to an earnest rendition of "We Shall Overcome" that will slay you.