The 28-year-old revealed plans of music comeback last year, since taking a break in 2009 to spend time with her kids, 2-year-old Ethel and 14-month-old Marnie, reported Ace Showbiz.
"Why did I choose to come back? I thought I'd be a really happy mum just sitting at home, playing with my kids, that was my dream. I love my children, but I'm a very impatient, busy person naturally so two babies, neither of them can talk, it was quite boring," Allen said.
Last year, Allen had released 'Hard Out Here', her first new single after the comeback announcement.