"Somebody That I Used to Know" is a song by Australian-Belgian singer and songwriter Gotye from his third studio album Making Mirrors, and features New Zealand singer Kimbra. The song was written by Gotye himself, lyrically about the experiences he had in broken relationships. The song was released on 6 July 2011 as the second and lead single off the album.
The song was released into critical acclaim by music critics and a surprising success in Australia, peaking at number one in the country for eight weeks, becoming the longest running Australian song since Savage Garden's 1997 song, "Truly Madly Deeply". The song received other success in European countries particularly Flanders (the Dutch-speaking part of Belgium) and the Netherlands where it peaked at number one. In Kimbra's home country, New Zealand, the song has also reached number one.
In Poland song was so far 11 weeks number 1 at National Radio Program 3 Chart.
It is Gotye and Kimbra's highest-charting, selling and first number-one song in Australia and New Zealand, also causing their previous singles and albums to chart in the top 100 in Australia. The song was featured in 90210 and in Gossip Girl.