So you have inclusions like "Drowse" from A Day at the Races because drummer Roger Taylor handles the lead vocal, "Long Away" because it is the only Queen single to feature guitarist Brian May on lead vocals and "Play the Game" because it was the first song on which the band used synthesizers.

The rest of the deep album cuts and hits, ranging from "Lily of the Valley" to "Somebody to Love," from "Bijou" to "Crazy Little Thing Called Love," have similar reasons for being included.

And while all these numbers have been available previously, the three songs stacked at the head of Forever are released on this compilation for the first time and they'll provide the main draw for Queen completists.

The first of the three has been talked about for years; the Freddie Mercury and Michael Jackson duet "There Must Be More to Life Than This." The song was originally slated for Queen's Hot Space album but never got finished, and Mercury ended up putting out a version of the song (without Jackson) on his 1985 solo album Mr. Bad Guy. Here though the new version featuring the Jackson vocals is cobbled together by uber producer William Orbit and while the tune won't appeal to fans who only like the hard rock side of Queen it definitely will tug at the heartstrings of the truly dedicated fans of the two late singers.

The other two "new" cuts are "Let Me in Your Heart Again," a mid-tempo, piano-driven leftover from the The Works sessions and "Love Kills," a somewhat eerie, stripped-down version of the Mercury/Giorgio Moroder co-write that in its original incarnation was Mercury's first solo hit even though it actually features all four members of Queen. A 2-CD version of Forever is also available.