Last year he made a talking tour of Russia where, moved by the plight of the massacred children in the school siege, he interrupted a television interview to donate his fee of 3,000 euros to a support fund for the families.
Despite a quadruple heart by-pass operation, Williams looks nothing like his 75 years and has continued to promote occasional events like Saturday's dance. The secret behind his energy? " Vodka," he declares.
He added: "I have told the band to play for dancers and there will be tables and a dance floor available. I have always been a fan of the big bands and used to dance to them at the Grafton Ballroom next door to the Olympia."
Some of the money raised at the event will go towards the Liverpool Echo Sunshine Fund charity.
* The Syd Lawrence Orchestra and Guests are at the Olympia, Liverpool, Saturday, 7.00pm. Tickets £15, box office 0151 263 6633