The lawsuit, filed by Marvin Gaye's estate, claimed that "Blurred Lines" infringed on the copyright of "Got to Give It Up", which was released in 1977. The lawsuit argued that the song's melody, harmony, and bass line were substantially similar to Gaye's song. While Thicke and his co-writers, Pharrell Williams and T.I., maintained that their song was an original work, they eventually settled the lawsuit for an undisclosed amount.