Carol gives birth to Marlon Jackson Jr.
Michael does backing vocals for the song State Of Independence by Donna Summer.
- February 6:
Enid gives birth to Brandi Jackson.
- April 14:
Michael & Paul McCartney start recording the song The Girl Is Mine in Los Angeles.
- July 17 :
Michael attends a gala in honor of Quincy Jones at the Beverly Hilton Hotel.
Michael, Quincy Jones & Bruce Swedien start the recording of The Thriller album at the Westlake Studios in Los Angeles.
Michael razes and rebuilds the Encino family Home. During the reconstruction, he moves into a condo that he owns with Katherine, Janet & LaToya.
During a photoshoot by Dick Zimmerman for the cover of ET Storybook, Michael meets Karen Faye and hires her as his personal make-up artist
- August 18 :
Katherine files for divorce for the second time but she withdraws her demand later on.
- August 20:
Michael gives an interview for the October’s issue of Interview magazine when Andy Warhol calls him to take part in the interview.
The single Muscles by Diana Ross is released. The song was written, composed and produced by Michael.
Steven Spielberg asks Quincy Jones and Michael to produce a storybook album for his movie ET. Even though, they are very busy working on the Thriller album but they accept and spend days & nights working in the Westlake Studio.
Michael gives an interview to Rolling Stone correspondant Gerri Hirshey from his rented condo in the San Fernando Valley.
- September 15 :
Michael attends the last Queen concert from their Hot Space US Tour at the Forum in Inglewood. Later Freddie Mercury and him record songs together including a duo titled State Of Shock.
- October 10:
Michael attends the wedding of Courtney Sale & Steve Ross with Quincy Jones & his wife Peggy.
- October 23:
The Girl Is Mine is released a a one-sided single by Epic.
ET Storybook is released by MCA Records. A legal battle immediately ensues over the release of the album. CBS Records claims that MCA violated their agreement by releasing their album before Thriller. A New York Supreme Court judge prohibits further sales of the album and of the single Someone In The Dark which are removed and destroyed!
- November 8 :
Michael, Quincy & Bruce complete the mixing of the Thriller album.
- November 30 :
The album Thriller is released on Epic. It will become the most successful album of all time with 7 hit singles, 107 millions copies sold worldwide, 3 legendaries videos , 8 American Music Awards & 7 Grammy Awards!!!
The family moves back to Hayvenhurst now equipped with a second story to the bedrooms, upstairs a den and a gym, downstairs a game room and a thirty-two-seat movie theatre and off the entry hall, a trophy room. Michael spends a lot of time at Hayvenhurst playing with his menagerie composed of Louis & Lola (the llamas), Prince & Princess (the deer), Winter & Spring (the peacocks), Jabbar (the giraffe) or Muscles (the snake)
Michael & ET are on the cover of Ebony Magazine.
Michael gives an interview to UK's magazine Smash Hits.