Looks like R.Kelly will be suing Lifetime if they air the documentary “Surviving R. Kelly” according to the singers lawyer it paints the singer as being sex-crazed and a abusive cult leader. A legal letter obtained by TMZ — warning the network that its “Surviving R. Kelly” documentary is packed with lies. Nix threatens to file a federal lawsuit Thursday — the same day Lifetime’s set to air the special — if the network doesn’t relent.