Question: Longtime Randall amp customer Scott Ian is original rhythm guitarist for which metal band?

Context paragraphs:
Dan Lilker: Daniel A. "Dan" Lilker (born October 18, 1964 in Bayside, New York) is a musician from the United States, most known as a bass player, but also guitarist, pianist, drummer and vocalist.  He is the bassist for the thrash metal band Nuclear Assault and was a founding member of Anthrax with Scott Ian, (Lilker was then playing rhythm guitar) and recorded bass guitar and co-wrote on their first album, "Fistful of Metal".  He also founded crossover band Stormtroopers of Death with Scott Ian and Charlie Benante (from Anthrax), and Billy Milano (Anthrax roadie, M.O.D. singer).  He also plays bass with Brutal Truth, Exit-13, Malformed Earthborn, The Ravenous, Overlord Exterminator, Venomous Concept, Crucifist, Nokturnal Hellstorm and Extra Hot Sauce.

Aquostic II: That's a Fact: Aquostic II: That's a Fact!  is the thirty-second studio album by English rock band Status Quo, first released on 20 October 2016.  Produced by Mike Paxman, this is the band's second completely acoustic album and the last recorded prior to the death of the band's original rhythm guitarist Rick Parfitt.

Fredrik Johansson (musician): Fredrik Johansson is a former member of melodic death metal band Dark Tranquillity for almost six years.  He joined in 1993 after the band's vocalist at the time, Anders Fridén, left the band and their rhythm guitarist Mikael Stanne took the vocalist role to solely focus on it, leaving an empty rhythm guitarist spot, which Fredrik took.  Prior to the release of "Projector" in 1999, he was asked to leave Dark Tranquility due to a lack of commitment to the band, stemming that he wanted to become a family man.

Randall Amplifiers: Randall Amplifiers is a manufacturer of guitar amplifiers, a subsidiary of U.S. Music Corporation.  Its products have been used by artists such as Kirk Hammett of Metallica, Dimebag Darrell of Pantera, George Lynch, Scott Ian of Anthrax, Nuno Bettencourt of Extreme, Chuck Schuldiner of Death, Ty Tabor of King's X, Kurt Cobain of Nirvana, Rivers Cuomo of Weezer, and Ola Englund of Six Feet Under and Feared.  Randall makes both solid-state and tube amplifiers.

Anthrax discography: American thrash metal band Anthrax has released eleven studio albums, five live albums, seven compilation albums, ten video albums, six extended plays, twenty-six singles and twenty-six music videos. Anthrax was formed in 1981 by guitarist Scott Ian and bassist Danny Lilker, who picked the band's name from a biology textbook.  After releasing its debut "Fistful of Metal" (1984) on the independent label Megaforce Records, Anthrax signed to major label Island Records.  Singer Joey Belladonna and bassist Frank Bello joined the lineup and the band released "Spreading the Disease" the following year.  The band's third studio album "Among the Living" (1987) was its commercial breakthrough, peaking at number 62 on the "Billboard" 200 and was certified gold by the Recording Industry Association of America (RIAA) and silver by the British Phonographic Industry (BPI).  Its fourth album "State of Euphoria" (1988) peaked at 31 on the "Billboard" 200 and received gold certification in the US.

Scott Ian: Scott Ian (born Scott Ian Rosenfeld; December 31, 1963) is an American musician, best known as the rhythm guitarist, backing and additional lead vocalist, and the only remaining original founding member of the thrash metal band Anthrax.  He also writes the lyrics on all their albums.  Ian is the guitarist and a founding member of the crossover thrash band Stormtroopers of Death.  He has hosted "The Rock Show" on VH1 and has appeared on VH1's "I Love the..." series, "" and ""Supergroup" (TV series)".  Ian is also the rhythm guitarist for the metal band The Damned Things.

Anthrax (American band): Anthrax is an American heavy metal band from New York City, formed in 1981 by rhythm guitarist Scott Ian and bassist Dan Lilker.  The group was considered one of the leaders of the thrash metal scene during the 1980s.  Of the "Big Four" thrash metal bands (the others being Metallica, Megadeth and Slayer), Anthrax were the only band from the East Coast.  As of April 2017, the band has released 11 studio albums, several other albums, and 26 singles, including collaborating on a single with American hip hop group Public Enemy.  According to Nielsen SoundScan, Anthrax sold 2.5 million records in the United States from 1991 to 2004, with worldwide sales of 10 million.

List of Anthrax band members: The following is a list of musicians who have been members of American thrash metal band Anthrax since their formation in New York City in 1981.  The current lineup consists of rhythm guitarist Scott Ian, drummer Charlie Benante, bassist Frank Bello, lead vocalist Joey Belladonna, and lead guitarist Jonathan Donais.

Charlie Benante: Charles Lee "Charlie" Benante (born November 27, 1962, in The Bronx, New York) is an American musician best known as the drummer for thrash metal band Anthrax, as well as crossover thrash band Stormtroopers of Death.  Alongside rhythm guitarist and band leader Scott Ian he has composed the majority of the music throughout Anthrax's discography.

Mike Tempesta: Mike Tempesta is a rock guitarist and an artist relations manager.  He also goes by the moniker "M.33".  He was credited for rhythm guitar on the 1990 Anthrax album "Persistence of Time".  Before his career as a musician, he was a guitar technician for Anthrax's Scott Ian.  He was a member of Human Waste Project, and played rhythm guitar in the band Powerman 5000 until his departure in 2005.  He performed on the debut album of Scum of the Earth, once again with his brother John Tempesta, and has since left the lineup.  After leaving Powerman 5000, he took up a job as an artist relations manager for Yamaha Corporation of America, but soon left and eventually was hired as an artist relations manager for Fender Musical Instruments Corporation, overseeing the Jackson, Charvel, and EVH brands.

Supporting paragraphs: Randall Amplifiers Scott Ian
Answer: Anthrax