Mark Ronson initially turned down the chance to work on a posthumous Amy Winehouse album because he was "still coming to terms" with her death.
The producer was plunged into mourning after his former collaborator was found dead in July (11) and he said no when he was asked to add an arrangement to a version of Will You Still Love Me Tomorrow she recorded in 2004.
He tells The Sun, "I said no at first because it felt a little strange and I was still not really coming to terms with losing someone that close to you."
But Mark Ronson changed his mind after realising he could use the opportunity to create a tribute for his late friend.
He recalls, "I heard the vocal and thought it was amazing and that I could do something special with this which Amy would love. That was when I decided to do it...
"It was hard making this album. Listening to her voice, you forget what happened. You work on it as if she's still alive."
Now Mark Ronson feels proud to have contributed to Amy Winehouse Lioness: Hidden Treasures, a new collection of the late star's music, and compares it to her 2006 breakthrough, Back to Black.
He adds, "I love it. It's one of my favorite arrangements of anything we've done together. She sounds incredible. It sounds like a track from Back to Black and I know that was the stuff she liked."