 " Somebody That I Used To Know " has been covered by several artists including a cappella group Pentatonix who created a viral YouTube video in February 2012 and released the track on their EP , " PTX Volume 1 " on 26 June 2012 In addition Ingrid Michaelson , The <unk> , and Sam Tsui have covered the song . In February 2012 , Rita Ora covered the song at BBC Radio 1 's Live Lounge . A cover by Right the Stars featuring <unk> , which was also uploaded to YouTube , was recommended by Miley Cyrus . Dutch DJ Tiësto remixed the song for his album Club Life : Volume Two Miami . Phillip Phillips and Elise <unk> covered the song on the eleventh season of American Idol on 11 April 2012 . 
