Allen, who announced her return by tweeting “I’m coming back, bitches” has changed her Twitter handle from Cooper to Allen.
A year ago 28-year-old Allen changed her professional name to Lily Rose Cooper and now she says the new album will be released under her maiden name.
Allen made an appearance on Pink’s single True Love but her own last single was “Who’d Have Known” released in 2009.
Allen retired from music in September 2010 not long after he second studio album “It’s Not Me, It’s You” which won both praise and commercial success.
Her retirement was post a performance at Wembley Stadium.
She has ventured into a clothing store Lucy in Disguise and a Sony-backed label, In The Name Of as well as married Sam Cooper and gave birth to daughters Ethel Mary and Marnie Rose since retiring.
The new single may be released next March or April with the album to follow. Allen made a live performance in February at Paris Fashion Week during Etam’s Girls Only! Lingerie Show.