Thicke says he was high on Vicodin and alcohol when recording Blurred Lines featuring Williams. The claim came to light in court documents as part of a case taken by the estate of Marvin Gaye due to the songs likeness to Gaye’s song Got to Give it Up. Thicke claims Williams wrote most of the song.
To be honest, that’s the only part where — I was high on Vicodin and alcohol when I showed up at the studio. So my recollection is when we made the song, I thought I wanted — I — I wanted to be more involved than I actually was by the time, nine months later, it became a huge hit and I wanted credit. So I started kind of convincing myself that I was a little more part of it than I was and I — because I didn’t want him — I wanted some credit for this big hit. But the reality is, is that Pharrell had the beat and he wrote almost every single part of the song.