Jason Mark Everman is an American musician and soldier who played guitar with Nirvana and Mind Funk, and bass in Soundgarden and OLD. He later served tours in both Iraq and Afghanistan with the U.S. Army as an Army Ranger and Green Beret. As of May 2017, Everman plays the guitar in a military veteran band called Silence & Light.
Everman serving with the U.S. Army Special Forces in Afghanistan (from 2013 NYT article)
Nirvana was an American rock band formed in Aberdeen, Washington, in 1987. Founded by lead singer and guitarist Kurt Cobain and bassist Krist Novoselic, the band went through a succession of drummers, most notably Chad Channing, before recruiting Dave Grohl in 1990. Nirvana's success popularized alternative rock, and they were often referenced as the figurehead band of Generation X. Despite a short mainstream career spanning only three years, their music maintains a popular following and continues to influence modern rock culture.
Nirvana performing live at the 1992 MTV Video Music Awards. Kurt Cobain is in the foreground and Krist Novoselic is in the background.
Grohl performing with Scream in 1989
Announcement from the band encouraging people to participate in the making of the music video for "Smells Like Teen Spirit"
Nirvana added an extra guitarist, Pat Smear, for the In Utero tour.