I just assumed that it was acknowledged that the song sampled "Got To Give It Up."
The More You Know
GQ: What's the origin story behind your new single "Blurred Lines"?
Robin Thicke: Pharrell and I were in the studio and I told him that 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 -- normally, those are the best ones. Him and I would go back and forth where I'd sing a line and he'd be like, "Hey, hey, hey!" We started acting like we were two old men on a porch hollering at girls like, "Hey, where you going, girl? Come over here!" That's why, in the video, we're doing all these old men dances. It was great.
Read More http://www.gq.com/blogs/the-feed/2013/05/robin-thicke-interview-blurred-lines-music-video-collaborating-with-2-chainz-and-kendrick-lamar-mercy.html#ixzz2c9y6vTwI
Videos