Marie Harding said: “I can’t believe that all of this is in honour of my daughter.
“She meant the world to me and it’s been a great loss in my life.
“But, to have this, the mural and the plaque, is a wonderful tribute to her and I’m so proud of it.”
Proceedings from the event will be donated to The Christie Charity and the Sarah Harding Breast Cancer Appeal.
Mr Barratt said: “It’s very personal to myself and my wife, Rosemary, because Rosemary found out two years ago that she had breast cancer.
“Sarah Harding’s legacy as a musician, but also the legacy of her charity, is already achieving great works and it’s been so brilliant today.”
