Britney Spears' conservatorship battle with her father, Jamie Spears, suffered a devastating blow on Wednesday when a judge refused her request. The pop star has been fighting to get her dad removed from his role overseeing her affairs, which he has been in charge of since 2008.MORE: Britney Spears reveals the truth about her Instagram posts at court hearingBut a US judge denied Britney's lawyer's request to end Jamie's conservatorship despite the singer's explosive testimony in court detailing