Blurred Lines (feat. T.I. & Pharrell)

Robin Thicke and Pharrell Williams built the song in a studio session in July 2012, with Pharrell driving the track’s core beat and most of the writing. T.I. was added as the featured rapper on the released single, which arrived on March 26, 2013. The single became Robin Thicke’s first No. 1 on the Billboard Hot 100 and held that position for 12 consecutive weeks, making it the year’s longest-running chart-topper in the United States. It also drew immediate attention for its provocative video and for the copyright dispute that soon surrounded it. The track remains one of the defining pop hits of 2013, with a long U.K. chart run and a U.S. radio record that helped turn it into a crossover phenomenon. Its lasting fame is also tied to the landmark legal fight over authorship and musical similarity, which kept the song in cultural discussion well beyond its release.