Blurred Lines singer Robin Thicke revealed he has suffered huge problems with drug and alcohol addiction, admitting he "didn't do a sober interview" during the entire 2013 promotional tour for his album.

Robin also spoke about the breakdown of his marriage to Paula Patton, saying, "I told my wife the truth. That's why she left me." 

The comments were made during a deposition back in April, as part of an ongoing lawsuit that accuses Robin and Pharrell Williams of copying Marvin Gaye's 1977 hit Give It Up when writing Blurred Lines. Robin's statement was kept confidential until now, but today it was read out in a public court in L.A.

"Every day I woke up, I would take a Vicodin to start the day and then I would fill up a water bottle with vodka and drink it before and during my interviews," Robin said. "I don't recall many things that I said. In fact, I was quite surprised when I read them back sometimes."

When making his deposition, the singer said he hadn't taken drugs for the past two months but that he continued to drink alcohol. "My sobriety is off Vicodin," he explained. "When your wife leaves you, it gives you good reason to sober up."

He also spoke of his shame in taking credit for Blurred Lines, because Pharrell was the one that wrote it. "After making six albums that I wrote and produced myself, the biggest hit of my career was written and produced by somebody else and I was jealous and I wanted some of the credit," he said.

"The reality is that Pharrell had the beat and he wrote almost every single part of the song." Hmmm… we hope he's not trying to get off the hook for the Marvin Gaye controversy!

Robin hasn't had a great run of luck since releasing Blurred Lines. After breaking up with his wife, he made a follow-up album, Paula, dedicated to her. The album sold a paltry 24,000 copies in its first seven days, compared to 177,000 copies of Blurred Lines' during its opening week.