Sinead O'connor has publicly acknowledged her first husband for coming to her aid following a recent medical and financial meltdown, and reviving her love for music.

The exhausted singer returned home to Ireland after cancelling a series of U.S. dates last year (13), when the drugs she was taking to battle depression turned her into a wreck.

But her problems had only just began when promoters started suing her for pulling the plug on concerts.

She tells Billboard magazine, "Within the week it was being alleged that people I would have leapt in front of a bullet for had been financially f**king me over," and admits she feared "these motherf**kers were going to have my soul".

But, in among all the chaos, her ex-husband, producer John Reynolds, swooped in to save his former wife.

She adds, "John Reynolds saved my a**. "

He helped her battle her former aides and the financial mess and then introduced her to his favourite blues musicians, like Buddy Guy and Howlin' Wolf.

She says, "I got so into what they were saying, writing the facts of life and keeping things very simple and not sugarcoated."

Reynolds also helped his ex create songs for her acclaimed new album I'm Not Bossy, I'm the Boss.