"Somebody That I Used to Know" is a song written by Belgian-Australian singer-songwriter Gotye, featuring New Zealand singer Kimbra. The song was released in Australia and New Zealand by Eleven Music on 5 July 2011 as the second single from Gotye's third studio album, Making Mirrors (2011). It was later released by Universal Music in December 2011 in the United Kingdom, and in January 2012 in the United States and Ireland. "Somebody That I Used To Know" was written and recorded by Gotye at his parents' house on the Mornington Peninsula in Victoria and is lyrically related to the experiences he has had with relationships.
"Somebody That I Used to Know" is a mid-tempo ballad. It samples Luiz Bonfa's song "Seville" from his 1967 album Luiz Bonfa Plays Great Songs. The song received a positive reception from critics, who noted the similarities between the song and works by Sting, Peter Gabriel, and American folk band Bon Iver. In Australia, the song won the Triple J Hottest 100 poll at the end of 2011, as well as ARIA Awards for song of the year and best video, while Kimbra was voted best female artist and Gotye was named best male artist and producer of the year. The song came ninth in the Triple J Hottest 100 of the Past 20 Years, 2013. In 2013, the song won two Grammy Awards for Best Pop Duo/Group Performance and Record of the Year.
Commercially, "Somebody That I Used to Know" is Gotye's most successful and signature song. It has topped charts in the US, UK, and Australia, as well as 23 other national charts, and reached the top 10 in more than 30 countries around the world. The song has sold more than 13 million copies worldwide, becoming one of the best-selling digital singles of all time.2 It was also placed at the top of a number of year-end charts by Billboard Magazine (including the Hot 100, Adult Pop Songs, and Alternative Songs) and other record chart companies around the world.
"Somebody That I Used To Know" has been performed several times on major US TV shows such as The Voice, American Idol, and Saturday Night Live. It was covered by Canadian indie rock group Walk off the Earth using a single guitar played simultaneously by all five band members and by actors Darren Criss and Matt Bomer in the Glee episode "Big Brother". The hit song's accompanying music video was directed by Australian artist Natasha Pincus. The video, which has received over 990 million views on YouTube as of January 2018, premiered on 5 July 2011. It shows Gotye and Kimbra naked against a white backdrop. While they sing, a pattern of paint gradually covers their skin and the backdrop via stop motion animation.