Overview
Betty Lai Siu-man (born 23 June 1953), also known by her stage name Ban Ban and previously as Bun Bun, is a semi retired Hong Kong actress and singer.
Background
Lai was born in Hong Kong on 23 June 1953. she is of Meixian and Guangdong ancestry. Her elder sister is Sylvia Lai Sui-pun.
In 1966, Lai, her elder sister, and the other four male singers formed a musical band named BumbleBee to promote their traffic and road safety song in Hong Kong.
In 1967, She took the stage name previously as Bun Bun, but soon changed to Ban Ban, while her sister took the stage name of Sum Sum.
From Wikipedia (CC BY-SA 4.0).