Michael Andrew "Duff" McKagan is an American musician. He was the bassist of hard rock band Guns N' Roses for twelve years, with whom he achieved worldwide success in the late 1980s and early 1990s. McKagan rejoined the band in 2016, following their induction into the Rock and Roll Hall of Fame.

Velvet Revolver was an American hard rock supergroup consisting of Guns N' Roses members Slash, Duff McKagan and Matt Sorum, alongside Dave Kushner formerly of punk band Wasted Youth, and Scott Weiland formerly of Stone Temple Pilots. The band formed in 2002 and was active until 2008, when Weiland left the band abruptly to rejoin Stone Temple Pilots.