Lindsay Lohan's troubles aren't quite behind her as everyone had hoped. Yesterday TMZ reported the news that the starlet had failed a court-mandated drug test, testing positive for cocaine, and LiLo fessed up on Twitter late last night. She wrote: "Regrettably, I did in fact fail my most recent drug test and if I am asked, I am prepared to appear before judge Fox next week as a result."
LiLo continued on Twitter: Substance abuse is a disease, which unfortunately doesn't go away over night. I am working hard to overcome it and am taking positive steps forward every day. I am testing every single day and doing what I must do to prevent any mishaps in the future."

As of Friday, the LA Sheriff's department had apparently not been informed of Lohan's failed drug tests.
"I am so thankful for the support of my fans, loved ones and immediate family, who understand that i am trying hard, but also that I am a work in progress, just as anyone else. I am keeping my faith, and I am hopeful," Lohan wrote. "Thank you all!!!"