"Blurred Lines" is a song by American singer Robin Thicke featuring American rappers T.I. and Pharrell Williams from the former's sixth studio album of the same name (2013).
Solely produced by Williams, it was released as the album's lead single on March 26, 2013, through Star Trak Recordings and Interscope Records. For the lyrics, Thicke said the song is about his former wife Paula Patton. Musically, "Blurred Lines" is an Dance-pop, Funk and Post-disco track with instrumentation consisting of bass guitar, drums, and percussion.
The single was negatively reviewed by many music critics, with some saying it glorified rape culture. Commercially, the song topped the charts of 25 countries and reached the top five of six others. "Blurred Lines" spent 12 consecutive weeks atop the US Billboard Hot 100, making it the longest-running single of 2013 in the United States. In June 2018, the song was certified a diamond certification by the Recording Industry Association of America (RIAA).
It became one of the best-selling singles of all time, with sales of 14.8 million, simultaneously breaking the record for the largest radio audience in history. The song was nominated for awards, including Record of the Year and Best Pop Duo/Group Performance at the 56th Annual Grammy Awards.
The music video for "Blurred Lines" was directed by Diane Martel. Two versions of the video exist: edited and unrated. In both of them, Thicke, T.I., and Williams are featured with models Emily Ratajkowski, Elle Evans, and Jessi M'Bengue performing several activities, including the models snuggling in bed with Thicke and sitting on a stuffed dog.
After being on the site for just under one week, the unrated version, featuring topless models, was removed from YouTube for violating the site's terms of service. Many critics panned both videos, calling them misogynist and sexist.
To promote the song, Thicke performed on televised live events including the 2013 iHeartRadio Music Festival, The Ellen DeGeneres Show, and a highly controversial performance with American singer Miley Cyrus at the 2013 MTV Video Music Awards.
The song became the subject of a bitter legal dispute with the family of American singer Marvin Gaye and Bridgeport Music, who argued the song infringed on copyrights to Gaye's 1977 single "Got to Give It Up".
Williams and Thicke were found liable for copyright infringement by a federal jury in March 2015, and Gaye was awarded posthumous songwriting credit based on the royalties pledged to his estate.