N-dubz singer and X Factor Judge Tulisa Contostavlos exposed in the Internet with an intimate video with her former boyfriend. The Tulisa sex tape video was uploaded yesterday on Youtube.com and went viral minute it was published. Tulisa later published a video on YouTube accusing her former boyfriend Justin Edward who currently performs as MC Ultra. Tulisa also got emotional explaining their relationship and acknowledge her trustworthiness to Justin Edward. Simon Cowell called the person a “scumbag”. In the video, Tulisa was seen giving b…job to an unidentified man.