EXCLUSIVE

Drake's new album hasn't even dropped yet, but he already sent shock waves through the hip-hop world when he released his track list ... and one of the songs features Michael Jackson.

Our sources tell us ... the track -- titled "Don't Matter to Me" -- is actually a previously unreleased MJ song that Drake raps and sings along with. The format is similar to the 2014 song, "Love Never Felt So Good" ... which was a Jackson tune turned into a duet with Justin Timberlake.

Drake's new album, "Scorpion," will be available everywhere June 29 ... and the tracklist shows the King of Pop isn't the only superstar featured -- Jay-Z will showcase his talents as well.

The #6 track listed on the album was released a few weeks back, and the music vid's already racked up more than 25 million views thanks to the 'Degrassi' cast reunion aspect.