"Era Vulgaris" is the sixth studio album by the American rock band Queens of the Stone Age, released in 2007. The album features a blend of rock, stoner rock, and alternative rock, showcasing the band's signature sound. It includes popular tracks like "3's & 7's" and "Sick Sick Sick," which received significant radio play and critical acclaim. The album was produced by Josh Homme, the band's frontman, and features collaborations with various artists, including Billy Gibbons of ZZ Top. "Era Vulgaris" explores themes of love, loss, and existentialism, reflecting the band's evolution and experimentation with different musical styles.