Queen's most moving song is arguably not "Bohemian Rhapsody" or "Somebody to Love," but their lesser-known 1986 U.K. hit "Who Wants to Live Forever." The song was written for the motion picture Highlander (appearing on the Queen album A Kind of Magic) and the song lyrically explores the pros and cons of the leading character's immortally -- while there's only one way for him to die (by getting his head cut off!), he has to watch his mortal loved ones die over the years. Penned entirely by guitarist Brian May, "Who Wants to Live Forever" featured very little guitar -- it was based largely on piano/keyboards and composed to sound almost as a symphonic piece. Categorized as a ballad upon first listen, the song builds gradually to a bombastic middle section, before returning to its more solemn original direction. Freddie Mercury steals the show, however, handing in one of his most emotional vocal performances on record, as the song took on new meaning after his death in 1991. The song was performed live on Queen's final tour in 1986, and was redone masterfully by Seal at the 1992 Freddie Mercury tribute concert at Wembley Stadium (backed by the remaining Queen members). Just the bare piano structure of the song is included as a bonus track of the A Kind of Magic CD, titled simply "Forever," which takes on a haunting beauty of its own.