Robin Thicke’s “Blurred Lines” is blurring the legal lines too. Half the song sounds like a Marvin Gaye hit, the other half sounds like a Funkadelic hit, in between is Robin Thicke, who offered the family of Marvin Gay a six-figure sum to head off a copyright infringement showdown in its tracks, but the family turned it down. Robin Thick’s "Blurred Lines" is his biggest hit. It just made the tops spot on this week's Billboard Hot 100 for the 11th straight week.

Billboard reported that Robin Thicke’s “Blurred Lines” caught the ear of Frankie Christian Gaye, Marvin Gaye III and Nona Marvisa Gaye who said Robin Thicke's "Blurred Lines" hit single plagiarized "Got To Give it Up," which was written and performed by Marvin Gaye. Marvin Gaye died in 1984 when his father shot him in self-defense.

On Aug. 15, Robin Thicke and "Blurred Lines" co-writers Pharrell Williams and Clifford Harris, Jr., filed a lawsuit in U.S. District Court in Los Angeles that requested a ruling that the song doesn’t infringe on the Marvin Gaye hit. Robin Thick and “Blurred Lines” team also filed a similar suit saying "Blurred Lines" does not infringe on George Clinton's "Sexy Ways," from the 1974 Funkadelic album, "Standing On The Verge Of Getting It On," which Bridgeport Music Inc. accused them of.

Bridgeport Music, Marvin Gaye’s family’s attorney, Richard Busch and Robin Thicke’s legal team, King, Holmes, Paterno & Berliner, have all declined to comment.

Marvin Gaye III said, in an interview with TMZ, "We’re not happy with the way that he went about doing business let alone suing us for something where he clearly got his inspiration from at the least."

In May Robin Thick told GQ magazine "one of my favorite songs of all time was Marvin Gaye's 'Got to Give It Up.' I was like, 'Damn, we should make something like that, something with that groove.' Then he started playing a little something and we literally wrote the song in about a half hour and recorded it. The whole thing was done in a couple hours."

Robin Thicke's suit claims the "intent in producing 'Blurred Lines' was to evoke an era. In reality, the Gaye defendants are claiming ownership of an entire genre. The reality is that the songs themselves are starkly different."