singer robin thicke and pharrell williams found themselves in court after a lawsuit was brought on byly whether "blurred lines" ripped off "gottagive it up", heard on soul train. i took it to a music producer and instructor, chris preti. >> this is the marvin gaye version. and here's the beginning of "blurs lines." ♪ >> reporter: and this is the heart of the argument. >> you would have thought it was "blurred lines." >> reporter: and the jury must have thought so, too. the jury awarded marvin gaye's family millions after they determined that they did indeed copy marvin gaye's music. a big upset to the defense. >> nothing detracts from the fact that we know it, that the song "blurred lines" came from the heart and soul of pharrell williams and no one else. >> reporter: as the lines between music tracks continue to blur. >> katy, did you use music or rhythm's from flame's song? >> it will embolden people to, you know, who may not really have a case to pursue one, and, you know, there are some statistic, i think it was eight out of the ten songsom grmy son. so people smell money. >> repo