This is it (1980) original, by Michael Jackson & Paul Anka - New song

This is it (1980) original, by Michael Jackson & Paul Anka - New song <br /><br />Scoop anti plagiarism: www.antiplagio.org/1980.htm (we publish original copyright the song of Michael Jakson "This is it". As you can see, the song is dated 1980 and is written only by Michael Jackson. On 16/11/1984 the track is assigned a registration number, preceded by the letters PA case: may be the initial Paul Anka. So why Paul Anka said it composed by Michael Jackson in 1983?)