Queen have unveiled a ballad version of the Freddie Mercury single "Love Kills" to promote their upcoming album Queen Forever.

The compilation features three previously unreleased tracks including the Michael Jackson collaboration "There Must Be More Than This."

"More Than This" was recorded in 1983 in L.A. where Freddie Mercury and Jackson sang the tune that was later revived during sessions for 1984's The Works. A solo version was eventually released on Mercury's 1985 solo debut Mr. Bad Guy.

The other previously unreleased cut featured on Queen Forever is the Mercury track, "Let Me In Your Heart Again" from the band's The Works album sessions.

Queen Forever hits November 10. The group will support the album with a brief U.K. tour next year.