Bush (born August 24, 1963) is an American metal vocalist.
He came to prominence in the 1980s as the lead singer and lyricist of Armored Saint, a traditional heavy metal band from Los Angeles, California.
In 1992, he joined the thrash metal band Anthrax, with whom he remained until 2005 and briefly rejoined in 2009–2010.
Bush has also been active with the reformed Armored Saint intermittently from 1999 to the present.
Bush is often regarded as one of the best singers in heavy metal.
Eduardo Rivadavia of Allmusic praised Bush's "remarkable voice" while authors Howie Abrams and Sacha Jenkins raked him as the eighth best vocalist in the genre.