"Locomotive (Complicity)" is a song by the American rock band Guns N' Roses, appearing on their 1991 studio album, Use Your Illusion II.
Manager Doug Goldstien mentioned in a book by Mick Wall about the song "Granted, I was with Slash and Duff when they were writing the music for Use Your Illusion, And 'Locomotive' and 'Coma,' they were doing that shit without Axl's participation.
"[4] Guns N' Roses played the song a few times on the Use Your Illusion Tour.
[9] In 2021, the website Ultimate Classic Rock said this about the song "The band's newfound musical maturity was readily apparent in the haunting, "Layla"-esque coda to "Locomotive," replete with urgent piano chords, Axl Rose's multi-tracked crooning and one last yearning guitar solo from Slash.
Bassist Duff McKagan and drummer Matt Sorum anchored the multi-part epic with airtight grooves, showing just how far Guns' rhythm section had come since their Appetite days."