"Immortal Megamix: Can You Feel It/Don't Stop 'til You Get Enough/Billie Jean/Black or White (Immortal Version)", often shortened to just 'Immortal Megamix' is the first single from Michael Jackson's posthumous remix album Immortal, which was released on November 1, 2011.

In October 2011, Sony Music Entertainment announced that the soundtrack to Cirque du Soleil's show Michael Jackson: The Immortal World Tour entitled Immortal.

"Immortal Megamix" became the debut track from this album, which was composed of four of Michael's greatest hits - "Can You Feel It," "Don't Stop 'til You Get Enough," "Billie Jean," and "Black or White". An edited version had been unveiled on AolMusic on October 31, 2011. Following the premiere on AOL, the track became available to stream at www.MichaelJackson.com and on Jackson's Facebook page. On November 1, 2011, the full track became available as a digital single on iTunes and amazon.com in EU, United States., New Zealand and Australia.

The song received mixed reviews from music critics. Scott Shetler from Popcrash said, the original songs were "left intact on this remix with only slight musical embellishments, such as a "Michael! Michael!" chant that appears during 'Billie Jean'", and depite other mixes as "HIStory Megamix" that preceded his 1995 double-album were better, "with his (Michael Jackson's) legacy of musical gold, it would be nearly impossible to create a bad mix." Bill Lamb from About.com said, "All four songs included on the megamix sound astonishingly current and contemporary." Jillian Mapes from Billboard said, this single was "full of bombast and dance club glory," although "it starts off with scratching and drum rolls that feel like an odd fit for Jackson classics through the years", the song was "sure to get you moving."

Immortal, Immortals or Immortality may refer to:

A megamix is a medley remix containing multiple songs in rapid succession. There may be only one verse or even just a brief chorus of each song used, sometimes in addition to samples of the same or other songs. There may also be some elements of bastard pop in some, though not as much as a mashup^{[citation needed]}. To unify the songs together smoothly, a single backing beat may be added as background throughout the megamix -although this is not a must-. This backing beat is kept basic so as to simplify mixing and to not compete with the music. These mixes are usually several minutes long at minimum, going up to a half-hour or even more sometimes.

Ultimix is known for "flashback medleys" producing at least one or two every year based on popular songs of the year. Each is about 15 minutes long, usually with at least that many songs if not more.

"Album megamixes" feature all tracks from a particular album edited and compiled into one continuous medley. The "artist megamix" is also popular, including songs spanning a musician's career, with prolific artists such as Michael Jackson having more than one, usually from different remixers. Duran Duran created a megamix single from their own hits for the 1990 greatest-hits album Decade: Greatest Hits. Subsequently artists such as Madonna, Britney Spears, and Janet Jackson have also released megamixes as singles in order to promote their greatest hits albums or in the latter's case studio album. Many megamixes are bootlegs.

Michael Joseph Jackson (August 29, 1958 – June 25, 2009) was an American recording artist, entertainer, and businessman. Often referred to as the King of Pop, or by his initials MJ, Jackson is recognized as the most successful entertainer of all time by Guinness World Records. His contribution to music, dance, and fashion, along with a much-publicized personal life, made him a global figure in popular culture for over four decades. The seventh child of the Jackson family, he debuted on the professional music scene along with his brothers as a member of The Jackson 5 in 1964, and began his solo career in 1971.

In the early 1980s, Jackson became a dominant figure in popular music. The music videos for his songs, including those of "Beat It", "Billie Jean", and "Thriller", were credited with transforming the medium into an art form and a promotional tool, and the popularity of these videos helped to bring the relatively new television channel MTV to fame. Videos such as "Black or White" and "Scream" made him a staple on MTV in the 1990s. Through stage performances and music videos, Jackson popularized a number of complicated dance techniques, such as the robot and the moonwalk, to which he gave the name. His distinctive musical sound and vocal style influenced numerous hip hop, post-disco, contemporary R&B, pop and rock artists.