Chicago at Carnegie Hall is the first live album and fourth album overall by American band Chicago and was initially released in 1971 as a four LP vinyl box set on Columbia Records. It was also available for a time as two separate 2-record sets. A quadraphonic mix of the album was proposed, but was never done, possibly due to the band's objection to the record being released in the first place. This is the only Chicago album of their first ten releases not to have a Quadraphonic release in any format.