Duffy has debuted her first new song since revealing that she was drugged, held captive and raped.
The Mercy singer sent the track, entitled Something Beautiful, to radio DJ Jo Whiley to help “lift spirits” amid the coronavirus pandemic.
The new music came weeks after Duffy spoke out about her ordeal.
The star had said she would be releasing a spoken interview about her traumatic experience, but said in her Instagram message to Whiley that it was proving to be “harder than I thought”.
Duffy wrote: “Hi Jo (Whiley).
“Hope you are well and keeping safe. Wanted to send you this to play on the radio, if you want.
“You may have read the words I wrote a few weeks back, I do feel freer.
“Tried to follow up with a spoken interview, but it’s harder than I thought, I will follow up in writing soon.
“Universal Music & no one knows I am doing this. They won’t be mad, they are lovely people.
“So here’s a song … here’s Something Beautiful. It’s just something for you to play people on radio during these troubling times, if you like the song of course. If it lifts spirits.
“I don’t plan to release it, I just thought a little something might be nice for people if they are at home, on lockdown.”
Writing on Instagram last month, the singer told fans she had kept away from the public eye following her ordeal but was now ready to talk about it.
She wrote: “Many of you wonder what happened to me, where did I disappear to and why? The truth is, and please trust me I am ok and safe now, I was raped and drugged and held captive over some days.”
She went on: “Of course I survived. The recovery took time. There’s no light way to say it. But I can tell you in the last decade, the thousands and thousands of days I committed to wanting to feel the sunshine in my heart again, the sun does now shine.”
Duffy first found fame aged 20 on talent show Wawffactor, the Welsh version of The X Factor.
After being signed by A&M records she shot to fame in 2007 with her debut album Rockferry, finding success in Europe and the US and winning a Grammy in 2009.