Robert Scott Weinrich, better known as Wino, is an American singer and guitarist. He has been highly influential in helping develop and codify doom metal's trademark sound, and is also considered an influential figure in the stoner rock and punk rock genre.

Pentagram is an American heavy metal band from Alexandria, Virginia, most famous as one of the pioneers of heavy metal, and the sub-genre of doom metal in particular. As such, they are considered one of the "big four of doom metal," alongside Candlemass, Saint Vitus and Trouble. The band was prolific in the underground scene of the 1970s, producing many demos and rehearsal tapes, but did not release a full-length album until re-forming in the early 1980s with an almost completely new line-up. Throughout the band's history, the only constant member has been vocalist Bobby Liebling. The revolving line-up of Pentagram has featured many well-respected musicians in the local doom metal scene, with members spending time in other acts such as the Obsessed, Place of Skulls, Internal Void, Spirit Caravan, among many others. The band's current line-up consists of Liebling (vocals), Matt Goldsborough (guitar), Greg Turley (bass), and "Minnesota" Pete Campbell (drums).