Lily Allen has admitted her third album, Sheezus, may not have been "good enough".
The 29-year-old's latest single URL Badman only reached number 93 in the charts, although Hard Out There and Air Balloon enjoyed top 10 success.
"The first thing I came back with was Hard Out Here and that was important to me, a real statement of intent, even though you couldn't put it on the radio over here because it had too much swearing," she told the Daily Mirror.
"I thought it did really well and then management and the label chose to go with Air Balloon. I just think starting with something really aggressive and in your face and then going in a different direction... People need to know what they are getting."
The mother-of-two reckoned her hormones may have affected her instincts.
She added: "I put my trust in other people, which I don't usually do. I usually go with my own gut feeling but maybe I wasn't feeling as confident as I have in the past because of all the hormones."
But Lily - who replaced Two Door Cinema Club at Latitude Festival at the weekend - said the disappointment has made her more determined to make more music.
"Maybe the songs aren't good enough this time, who knows? I just know I can't wait to get back into the studio," she added.