British singer {TULISA CONTOSTAVLOS} has blasted her ex-boyfriend after he admitted leaking a sex tape of the star, telling him, "You messed with the wrong woman." The N-Dubz star was left devastated in March (12) when footage of her performing a sex act on her former lover Justin Edwards circulated on the internet. She launched legal action to prove she had not released the clip herself, and on Monday (09Jul12), London's High Court heard Edwards admit he was behind the leak. At the conclusion of the case on Thursday (12Jul12), Contostavlos insisted she had "learned" from the experience and wants to put it behind her. Speaking outside court, she said, "I am relieved that this is finally over. It has been a very testing few months and this was not a case I ever wanted to go through. Justin Edwards' actions were to spite me, make money, and ruin my career. He has succeeded in none of these things. "I stand here today a stronger, wiser young woman who has taken this experience and learned from it. I am disgusted by Justin and saddened by the people who believed I released the footage myself. Today, the truth has prevailed. I would now like to draw a line under this and put it in the past. "I would also like to thank, from the bottom of my heart, the fans that (sic) stood by me. I am especially grateful for all the support I have received from the public, my friends, family and team. With that support, and my determination, I have won the battle. This time, Justin messed with the wrong woman." Contostavlos, who turns 24 on Friday (13Jul12), said she plans to celebrate by jetting out to Mediterranean party island Ibiza, adding, "I am really happy that the truth is finally out. It's a fresh start for me today. It's my birthday at 12 o'clock tonight, so a fresh start... I'm looking forward to the future... (I will be) celebrating - I'm off to Ibiza." Tulisa Contostavlos leaving the High Court London, England.