"Jam" is a song by Michael Jackson. The song is the fourth single from his 1991 album Dangerous. It appears as track one on Dangerous and track two on his 2009 This Is It compilation album. The single was re-released in 2006 as part of Jackson's Visionary: The Video Singles collection and it was remixed to the Cirque du Soleil's Immortal World Tour, releasing that remix on the soundtrack album. "Jam" is a new jack swing song whose bridge features a rap performed by Heavy D (of the group Heavy D & the Boyz). The music video of the song featured NBA legend Michael Jordan (the other "MJ"). The song was also featured on the Chicago Bulls'—Jordan's team at that time—1992 NBA Championship video "Untouchabulls" and was also used in many promotional ads of the NBA in the said season. Despite this heavy form of promotion, the single only reached #26 in the United States. The song re-entered the UK charts in 2006, reaching number 22.

"Jam" was generally well received by music critics. Adam Gilham of Sputnikmusic in his review for Dangerous described the song as a perfect album opener and rated it "5/5". Allmusic editor Stephen T. E. wrote that there's a lot to be said for professional craftsmanship at its peak and he called this song blistering plus highlight on album. Alan Light praised the song: "Jam," the album's opener, addresses Jackson's uneasy relationship to the world and reveals a canny self-awareness that carries the strongest message on Dangerous. "Jam" features a dense, swirling Riley track, propelled by horn samples and a subtle scratch effect, and includes a fleet rap by Riley favorite Heavy D. Though it initially sounds like a simple, funky dance vehicle, Jackson's voice bites into each phrase with a desperation that urges us to look deeper. He is singing as "false prophets cry of doom" and exhorts us to "live each day like it's the last." The chorus declares that the miseries of the world "ain't too much stuff" to stop us from jamming. To Jackson, who insists that he comes truly alive only onstage, the ability to "Jam" is the sole means to find "peace within myself," and this hope rings more sincere than the childlike wishes found in the ballads."

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