The singer has unveiled a YouTube Orchestra Remix of the track, which uses a collection of cover versions taken from the video-sharing site to reconstruct the global hit.
"Reluctant as I am to add to the mountain of interpretations of 'Somebody That I Used to Know' seemingly taking over their own area of the internet," Gotye said, "I couldn't resist the massive remixability that such a large, varied yet connected bundle of source material offered.
"Thank you to everyone who has responded to 'Somebody That I Used to Know' via YouTube. It's truly amazing!
"All audio and video in 'Somebodies' is from the YouTube user videos featured, each of them a cover or parody of 'Somebody That I Used to Know'.
"No extra sounds were added to the mix, but I used some EQ, filtering, pitch-shifting and time-stretching to make the music."
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He added: " I avoided using any existing remixes of the song, or any covers from tv talent shows.
"As comprehensive and extensive as I tried to be with my downloading of source videos, I know there are many clips that I missed. Tay Zonday's cover for instance, no internet mashup should be without him."
Gotye's 'Somebody That I Used to Know' has topped over 20 charts worldwide and has sold over 7 million copies to date.
Watch the YouTube Orchestra Remix of Gotye's 'Somebody That I Used to Know' below: