On the evening of October 23, 1983, a concert was held at the now known as Sunbeam Theatre to celebrate the 6th anniversary of the Hong Kong Union Art Entertainment Co., Ltd. Performers of the Hong Kong Television Broadcasts Co., Ltd. were invited to join in. Barbara was amongst them.
Sunbeam theatre is the name of a Cantonese opera house and is a famous Cantonese opera performance venue in Hong Kong.
For more information about the theater see: http://www.sunbeamspot.com/?action=aboutus_history