Steely Dan is an American rock band formed in Annandale-on-Hudson, New York, in 1971 by Walter Becker and Donald Fagen. Originally having a full band lineup, Becker and Fagen chose to stop playing live by the end of 1974 and continued Steely Dan as a studio-only duo, utilizing a revolving cast of session musicians. Rolling Stone has called them "the perfect musical antiheroes for the seventies".
Becker and Fagen played together in a variety of bands from their time together studying at Bard College in Annandale-on-Hudson. They later moved to Los Angeles, gathered a band of musicians and began recording albums. Their first, Can't Buy a Thrill, established a template for their career, blending elements of rock, jazz, Latin music, R&B, blues and sophisticated studio production with cryptic and ironic lyrics. The band enjoyed critical and commercial success with seven studio albums, peaking with their top-selling album Aja, released in 1977.
After Steely Dan disbanded in 1981, Becker and Fagen worked sporadically on solo projects through the 1980s, although a cult following remained devoted to the group's work.