Steely Dan

Steely Dan is an American jazz-rock band centered on core members Walter Becker and Donald Fagen.
The band's music is characterized by complex jazz-influenced structures and harmonies played by Becker and Fagen along with a revolving cast of rock and pop studio musicians.
Steely Dan toured from 1972 to 1974, but in 1975 became a purely studio-based act.
They have sold more than 30 million albums worldwide.
In early March 2008, Steely Dan announced on their website that they would be playing the Montreal Jazz Festival in July. This was then revised into a full summer tour, named Think Fast. Dates were selected mostly in the United States, with a few concerts in Canada.