JJAMZ was a band composed of Greenwald along with James Valentine (Maroon 5), Jason Boesel (Rilo Kiley/Conor Oberst), Michael Runion (solo), and Z Berg (The Like). The group was started at karaoke night at Guys in Hollywood. The band name is an acronym, using the first letter of each member's name. The group was a means of escape from each member's respective band at the time. "JJAMZ started at an interesting time in all of our lives. We all needed some kind of escape from relationships or our other bands. It was a tumultuous time, and the lyrics just came out. It was like word vomit. I can't remember," said Z Berg, previous lead vocalist of The Like, in one of their first interviews as a band. The band played their first concert at the Echo Plex on January 27, 2009. The band released their first and only album, Suicide Pact, on July 10, 2012. It was released through Dangerbird Records.