Los Angeles, Rapper Azealia Banks has threatened to put an "hex" on Twitter CEO Jack Dorsey as she claimed that she has three strands of his hair, which she will probably use during her act of witchcraft. Banks claimed that last year she struck a deal to promote Square, Dorsey's other company. In exchange, he was supposed to promote her new album, but he didn't do it, reports aceshowbiz.com. "Jack Dorsey asked me to tweet about his cash app and in exchange he was supposed to tweet about my mixtape. He never did," Banks tweeted. According to Banks, Dorsey sent her his DNA for protection purposes, but now she's going to use it against him and steal his luck. "He also sent me his hair in an envelope because I was supposed to make him an amulet for protection. I have three strands of a billionaire's hair. I should steal his luck. I only ask to be treated fairly. They seek me out," she wrote.