Sixx:A.M. is an American rock band formed in 2007 by Nikki Sixx, the bassist of Mötley Crüe, along with guitarist DJ Ashba and vocalist James Michael. The band initially started as a side project to create music for Sixx's autobiography, "The Heroin Diaries." They gained popularity with their debut album, "The Heroin Diaries Soundtrack," which features a mix of hard rock and alternative elements. The band's music often explores themes of addiction, recovery, and personal struggles. Over the years, Sixx:A.M. has released several albums, including "This Is Gonna Hurt" and "Prayers for the Blessed," showcasing their evolution in sound and lyrical depth.