2013 Summer Song

"Blurred Lines" Robin Thicke f/T.I and Pharrell Williams

Controversial for a few reasons, one being Marvin Gaye's family accused the song's authors of copying the "feel" and "sound" of "Got to Give It Up". In the lawsuit, Gaye's family was accused of making an invalid copyright claim since only expressions, not individual ideas can be protected.

Doesn't matter, twelve weeks at #1, the longest for 2013, and sixteen weeks at #1 on the R&B Chart. It was also #2 for the year.

List from Insider.com