Published Friday, 30 August 2013
The Smile hitmaker changed her Twitter address from her married name @lilyrosecooper back to @lilyallen on Friday, and launched an official website.
She then tweeted fans: "Hello, im Lily Allen, http://www.lilyallenmusic.com... and, I'm coming back, b*****s."
The website features links to a selection of her videos and an option for fans to sign up for a newsletter.
Earlier this month, Allen hinted she was ready to release a comeback single after working with producer Greg Kurstin, who contributed to her 2009 album It's Not Me, It's You.
The singer took time off to become a mother - her second child was born in January.