Justin Meldal-Johnsen is an American musician and bassist, best known for his work with Grammy Award-winning artist Beck. He served as the touring bassist for Nine Inch Nails during their last few tours.
JMJ has recorded bass for a diverse roster of acts: Air, Tori Amos, Garbage, Dixie Chicks, among others. He co-wrote several songs with singer Macy Gray, and acted as music director for Gnarls Barkley, assembling their live band for their first US performances in 2006. JMJ also spent the majority of 2008 to 2009 as the touring bassist for Nine Inch Nails on their Lights In The Sky (2008), and NIN|JA / Wave Goodbye (2009) tours. JMJ is in the studio producing the upcoming release by Los Angeles band, Division Day. Some of his own personal recordings are featured on The Informers film soundtrack.