Pharrell Williams’ “Blurred Lines” controversy with Marvin Gaye’s family has resurfaced.

Gaye’s estate previously won its copyright lawsuit over Pharrell and Robin Thicke‘s “Blurred Lines.” But On Friday, Gaye’s family filed a motion in federal court alleging Williams lied under oath in the case.

As reported by EW, the motion points to a November GQ interview in which Williams told producer Rick Rubin he “reverse engineered” Gaye’s tune.

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“We try to figure out if we can build a building that doesn’t look the same, but makes you feel the same way,” Williams said of his production process in the interview. “I did that in ‘Blurred Lines,’ and got myself in trouble.”

The Gaye family believes this proves Williams committed perjury during his deposition in the copyright case, when he stated: “I did not go in the studio with the intention of making anything feel like, or to sound like, Marvin Gaye.”

Source: Pharrell Williams: Marvin Gaye’s Family Accuses Him of Perjury in 2015 ‘Blurred Lines’ Trial – VIDEO