<P> As of March 2018, the album has sold 6,100,000 copies worldwide . </P> <P> Many of the tracks were recorded with original Guns N' Roses guitarist Izzy Stradlin during the Use Your Illusion I and II sessions and then were later re-recorded with Gilby Clarke . Those tracks were previously intended to be included in a combined Use Your Illusion album, consisting of three (or possibly four) discs, instead of the two separate discs they ended up being . </P> <P> In 1992, the band prepared to release the leftover cover tracks as an EP, with Gilby Clarke replacing Stradlin's guitar tracks . They later decided on making the album a full release and recorded several more tracks for it . Bassist Duff McKagan sings on many of the album's tracks and Hanoi Rocks frontman Michael Monroe appears on "Ain't It Fun" as a guest vocalist . This was the last Guns N' Roses album to feature lead guitarist Slash, bassist Duff McKagan, drummer Matt Sorum, and the only album to feature Gilby Clarke . It was also the band's last studio album until 15 years later with Chinese Democracy, and its last album until the live compilation album six years later with Live Era:' 87 -' 93 . </P> <P> During the studio sessions the band also recorded instrumental tracks of the song titled "Beer and a Cigarette", originally by Hanoi Rocks . The vocals were not recorded and the song was left out of the record because the band didn't want the songwriter Andy McCoy to get the money . The band also did an instrumental version of the song "Down On The Street" by The Stooges which also was never released . </P>

Who sings ain't it fun by guns n roses