Billboard takes a look back at the controversy behind Robin Thicke's No. 1 single "Blurred Lines" for the song's fifth anniversary. 'Blurred Lines' song copied Marvin Gaye 03:07. (CNN) A five-year legal battle over the copyright of the hit song "Blurred Lines" has ended with Marvin Gaye's family being awarded a final judgment of nearly $5 million against Robin Thicke and Pharrell Williams.