"It is don't look back, pick up, and go confidently into your own future, to personal power and fulfilment,' she says of Sun, which she wrote, recorded and produced herself.
Now almost two decades on from her debut album, she has striped her looks back to basics, having chopped off her hair and dressed down and covered-up.
Chan was born in 1972 and has worked as an American singer-songwriter, musician and occasional actress and model.
was originally the name of Marshall's first band,
but has come to refer to her musical projects with various backing bands.
Critics have noted the constant evolution of Power's sound, with a 'mix of punk, folk and blues' on her earliest albums, and elements of soul and other genres more prevalent in her later material.
Sun incorporates electronica, in a self-proclaimed move from the "really slow guitar songs" she initially wrote for the album.
Marshall's live shows have been known for their unpolished nature, with songs beginning and ending abruptly or blending into one another without clear transitions.
She has also cut short performances without explanation. On some occasions this has been attributed to stage fright and the influence of alcohol.
Recently, Marshall's performance style has been said to be much more enthusiastic andprofessional.
Marshall states that her newfound musical collaborators and sobriety are largely responsible for her increased confidence onstage.
Around the time of the release of Sun, Power had to cancel European shows because of illness.
"I'd get a bump which would itch and itch, then it would turn into a blister. That was the beginning. It just seizes you and there"s nothing you can do.
"What caused it? Just stress with life. The same thing happened when The Greatest came out. A week beforehand I was in the hospital.
"This time I was psychologically strong enough but I was older, so the stress attacked my organism. I was in a feeling of failure and was angry about it.
"But you're incapacitated, you can"t get up. It makes you see how quickly you can be dead, without choosing it."
With Sun debuting at a career chart-high of No. 10 on the Billboard 200 chart, it seems Brighton Festival goers are likely to witness a late career high from Cat Power.