21 Guns is a melodic hard rock band from Los Angeles, California, USA, that was formed in 1990. The band split up in 2000.

Formed in by Thin Lizzy's guitarist Scott Gorham, bassplayer Leif Johanson and drummer Mike Sturgis who met through their work with Tom Galley's and Wilfried Rimensberger's Phenomena. At the time the band was fronted by master vocalist Tommy La Verdi formerly of the band A440. A440 enjoyed mediocre success with songs such as Method to my Madness and Flair for the Dramatic. He was replaced for the second CD by former Sons of Angels singer Hans-Olav Solli. The band was desolved in 2000 but Scott and Leif joined forces again in 2008 and started to work on a new album and are planning some live concerts.

So far they released three studio albums from 1992 to 2002, with the last album being a collection of old demos and B-sides