Classic Albums: Steely Dan - Aja: Aja was the biggest selling album of Steely Dan's illustrious career. It was the first album by Donald Fagen and Walter Becker as a duo. Fagen and Becker recall the history of the album, along with Peg, Deacon Blues and Josie. Michael McDonald, later of the Doobie Brothers did guest backing vocals on Aja, the late British musician Ian Dury, record producer Gary Katz and the legendary session musicians who worked on Aja also contribute. This is a vivd portrait of a 70's record that is still as fresh and as memorable more than two decades after its release.