Billy Blanchard-Cooper dusted off his wig to transform into Miss Daniella Dream for the first time in 18 months for The Power of Love concert at St James Church in East Ham Road, Littlehampton.
Thanks to money raised on the night from ticket sales, organiser Lorna Haynes said the fundraising total was at £1724.51.
She described the concert as 'fabulous': "We came in accompanied by 76 trombones, and everyone started clapping. You could feel the atmosphere from the very beginning; people wanted to raise money."
The mayor, who last appeared in drag at Love Festival in 2017, sang Falling in Love Again - popularised by Marlene Dietrich - and Barry Manilow classic Copacabana, and told the crowds: "Billy couldn't make it, so I've come in his place", Lorna said.
A friend of Lorna's through their connections to the Littlehampton Musical Comedy Society and Edwin James Festival Choir, he was inspired to perform by how she had cared for her husband Colin, who had advanced dementia. Click here to read more about Lorna and Colin's battle with the disease.
Lorna Haynes performed The Power of Love in honour of Colin, as well as Pie Jesus.
He said: "Lorna has been one of the strongest women imaginable in this type of situation and has learnt to not only care for her husband but also to care for herself and make time for her.
"This is so important as you cannot care for someone if you're not looking after yourself."
He added: "When Lorna first contacted me to ask if I would take part, I was slightly hesitant as I thought Miss Daniella Dream had left for good.
"However, for such a special person she made a comeback."
There was also a real proposal on the night, as Ian Sheppard popped the question to Pam Johnson during their performances, sparking a standing ovation.
A talk was also given by Linda Bensusan from The Alzheimer's Society.
Here is a full list of the other performers and their numbers:
Gill Kelly: I Hate Men; Y Viva Espana
Lorna Haynes and Veronica Cringle: I Know Him So Well
Veronica Cringle: Sunset, Sunrise; Sabbath Prayer
Sandy Robinson: I Could Have Danced All Night; Pie Jesus
Pam Johnson: Lascia; More
Ian Sheppard O Sole Mio; You Are The One I Love
Katharine Horwood: Can't Help Lovin' That Man; Bewitched, Bothered and Bewildered
James Rushman and Mick Bond: Well Did You Evah
Mick Bond: Music of the Night
Karl Twort: Empty Chairs and Empty Tables; Love Changes Everything
Martin Coombes: Bring Him Home; With One Look
Zelda Illman: Cabaret; As If We Never Said Goodbye
Chris Chewter: Che Gelida Manina; Gethsemane
Alexandra Claridge: O Mio Bambino Caro; I Dreamed a Dream
The whole company ended the show with You Raise Me Up