Sia，全名Sia Kate Isobelle Furler.生于1975年12月18日。澳大利亚流行、爵士等流派的歌手、词曲人。其代表作品《Breath Me》《Chandelier》《I'm in here》，合作作品《Titanium》《Wild One》等被人们 熟知。其慵懒沙哑的声线，独特的咬字，以及非凡的唱功给人们留下了深刻的印象。 2014年7月Sia推出了个人第六张专辑《1000 Forms of Fear》，专辑首单《Chandelier》提前于2014年3月17日发布。 紧接着Sia开展了一系列的表演与宣传。而这次在专辑发布前的几次表演却一直没有露脸，并随处可见其招牌铂色短发的元素。

"Somebody That I Used to Know" is a song by Australian singer and songwriter Gotye from his third studio album Making Mirrors, and features New Zealand-born singer Kimbra. The song was written by Gotye himself, lyrically about his 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 two weeks so far. The song received other success in European countries and New Zealand, peaking at the top 10 single charts there. It is Gotye and Kimbra's highest charting, selling and their first number one song in Australia, causing their previous singles and albums charting at the top 100 in Australia too.