The December 5-issued Lioness: Hidden Treasures includes 12 tracks.
These take in recordings from before the release of first album, Frank, up to music she was working on this year.
While it will technically be her third album, Island Records co-president Ted Cockle was quick to point out Lioness is not in any way the planned follow-up to 2006's Back To Black.
He noted: "This is a true reflection of the different stages of Amy's career."
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