Jackson will release the new version of the blockbuster album Tuesday, featuring new collaborations with Kanye West, Akon, Fergie and will.i.am.
"It's hard to believe that 25 years ago Quincy Jones and I embarked on an album named `Thriller,"' Jackson said in a video message to fans released Monday by his record company, Sony-BMG.
It was not immediately clear exactly when Jackson had made the video, or where it was recorded. He also hinted that he's not through recording music.
"There is still much for to come for Michael Jackson," he said. "My passion for music has never stopped. ... It's my hope that `Thriller' continues to live on for each new generation to discover."
Jackson, 49, soared to superstardom after releasing "Thriller" in November 1982. The instant classic spawned the hits "Billie Jean," "Beat It" and - of course - "Thriller," and introduced the moonwalk to legions of fans all around the world.
"To be able to say that `Thriller' still holds the record as the biggest selling album of all time is just mind-blowing. I have you, my fans, throughout the world to thank for this achievement," said Jackson, who has sold more than 750 million albums worldwide.
Jackson - whose previous disc, 2001's "Invincible," failed to produce any "Thriller"-level hits - seemed poised for a career comeback after years of avoiding the spotlight (including a period of self-imposed exile in Bahrain following his acquittal in 2005 on child molestation charges.).
