This Is It was actually written in 1983?

Wikipedia says: "Paul Anka, who co-wrote the song, stated that it was recorded in 1983 for a duet intended between he and Jackson on his album Walk a Fine Line under the original title of "I Never Heard".": http://en.wikipedia.org/wiki/This_Is_It_%28Michael_Jackson_song%29 . He also co-wrote (with Jackson) "Love Never Felt So Good" and wrote the English lyrics to the song "My Way", made famous by Sinatra.