A Lost Michael Jackson Tune...and His Final Concert?

Michael Jackson never got around to recording that long-awaited comeback album, but that doesn't mean there's not plenty of material.

E! News has obtained the King of Pop's recording of "Shout"—the first of what will likely be a slew of posthumous recordings unearthed in the next few years.

The tune, which puts a distinctive Jackson twist on the Isley Brothers' seminal 1959 hit, was cowritten by the New Jersey-based team of Cyphe and Crystal and recorded circa 2002 but was never released.

Jackson's last studio album, Invincible, came out in 2001.

One of Jackson's biographers, Ian Halperin, claims the singer may have left more than 100 unreleased songs to his three children as a "personal legacy," according the The Times of London.

Meanwhile, per TheWrap.com, Jackson's final Los Angeles rehearsal for his upcoming London concert series was recorded by AEG as part of his multimillion-dollar deal, and the concert promoter is reportedly planning to release it on DVD and CD as a "live concert."