So Far, So Good... So What! is the third studio album by American thrash metal band Megadeth, released on January 19, 1988, by Capitol Records. It was the band's only album recorded with drummer Chuck Behler and guitarist Jeff Young, both of whom were fired from the band in early 1989, several months after the completion of the album's world tour. So Far, So Good... So What! features music performed at fast tempos with technical ability; lyrically, frontman and guitarist Dave Mustaine addresses a variety of topics, including nuclear holocaust and freedom of speech.

Megadeth is an American thrash metal band formed in Los Angeles in 1983 by vocalist/guitarist Dave Mustaine. Known for their technically complex guitar work and musicianship, Megadeth is one of the "big four" of American thrash metal along with Metallica, Anthrax, and Slayer, responsible for the genre's development and popularization. Their music features complex arrangements and fast rhythm sections, dual lead guitars, and lyrical themes of war, politics, religion, death, and personal relationships.