Musician Pharrell Williams
Musician Pharrell Williams attends "The Night That Changed America: A Grammy Salute To The Beatles" in Los Angeles, California in this file photo taken January 27, 2014. Williams, the R&B singer of the hit song "Happy" and a music producer, will join NBC's singing contest "The Voice" as a coach for its seventh season in the fall, the network said on Monday. REUTERS/Jonathan Alcorn/Files REUTERS/Jonathan Alcorn/Files

Remember how Robin Thicke shared to GQ Magazine that it took him and Pharrell Williams only around 30 minutes to compose his controversial and yet catchy song, "Blurred Lines?" Turns out he was lying, he now admits. Not only did they not compose the song in less than an hour, Robin Thicke in particular has no right to claim authorship at all.

The song is currently being contested in court under the grounds of plagiarism. According to the children of Marin Gaye, Thicke, Williams and song co-writer Clifford ripped off their father's 1977 classic entitled, "Got To Give Up." The alleged songwriters filed a lawsuit to protect "Blurred Lines," however, Gaye's family also submitted an audio mash-up of the two songs to prove their case.

Thicke and Williams gave their depositions this past April and Hollywood Reporter was able to gather bits and pieces of these depositions. Interestingly, Robin Thicke in his deposition actually admitted that he has no authorship role in the song. Rather, Pharrell almost wrote the whole thing himself and Thicke just freeloaded on it.

The singer says under oath that he only took credit for the song even though he did not help in penning it. "I was jealous and I wanted some of the credit. I tried to take credit for it later because Williams wrote the whole thing pretty much by himself and I was envious of that," he said.

When he was asked if when the song was being created, but was high on Vicodin and alcohol that he did not really contribute anything. Only when the song became a very big hit that he wanted to take credit for it.

"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," the singer admitted.

This admission belies everything he told GQ magazine when asked how the song was created. He once told GQ magazine that he and Pharrell were in a studio and one of his favourite songs, Marvin Gaye's "Got To Give It Up," inspiring him and Pharrell to write something with that "groove." He shared that they were so inspired that they wrote the song in less than an hour.

He similarly shared this story to other media outlets. He now admits to have done it because he thought it would help sell records, Hollywood Reporter reports.