Mariah Carey and Jennifer Lopez are both music icons, but that doesn't mean they run in the same circle - or even know each other. Carey, 56, went viral in 2003 for saying, "I don't know her," when being asked about Lopez, 56, on a German talk show. Now, Carey is spilling the tea on where she stands with the Grammy nominee. "Can you believe how much 'I don't know her' has become part of the lexicon?" Andy Cohen asked Carey during the Wednesday, October 1, episode of Watch What Happens Live With Andy Cohen.