Possessed is an American death metal band, originally formed in 1983. Noted for their fast style of playing and Jeff Becerra's growled vocals, they are often called the first band in the death metal genre, and paved the way for the 1980s Bay Area thrash metal scene, along with Metallica, Exodus, Testament and Death Angel. The band is also notable for featuring future Primus member Larry LaLonde, who was the guitarist for Possessed from 1984 to 1987.

Death Angel is an American thrash metal band from Daly City, California, initially active from 1982 to 1991 and again since 2001. It has released nine studio albums, two demo tapes, one box set and three live albums. The band has gone through several line-up changes, leaving guitarist Rob Cavestany as the only constant member; he and vocalist Mark Osegueda are the only members of to appear on all of their studio albums.