The participants, known as Goldies, sing along to music from the 1950s, '60s and '70s.
BBC: Sir Cliff Richard becomes patron of Bath-based charity
2.
"When Grenville started Goldies in January 2008 he said then that the ideal person to be our patron would be Sir Cliff, " said Howard Cunningham-Smith, chairman of the charity trustees.
BBC: Sir Cliff Richard becomes patron of Bath-based charity