For the past 1 to 2 years, Twins have been working in Mainland China and are currently participating in Chinese variety show, Sisters Who Make Waves 3 (乘風破浪3) which increases their popularity.

Recently, some netizen retrieved an old interview about Mani Fok (霍汶希) in Chinese variety programme (最佳現場) in 2013. She mentioned about Joey Yung (容祖兒), Leo Ku (古巨基) and Nicholas Tse (謝霆鋒) tried to lose weight and practise singing during their free time. When the host questioned if it was her instruction, Mani replied: “Not really. I reckon Charlene Choi (蔡卓妍) is lazy. When I wanted to sign contract with Charlene on that day, her mother told me to reconsider as she knew her daughter was good at eating and sleeping only. She even ate her food on the bed. I was surprised but felt Charlene had potential and good affinity with the audiences. Hence, I decided to sign contract with her. Fortunately, she did not let me down and Twins have been working everyday since day 1. Charlene is a workaholic and hardworking person.”

Source: https://www.hk01.com/%E5%8D%B3%E6%99%82%E5%A8%9B%E6%A8%82/780158/%E7%B6%B2%E5%8F%8B%E8%80%83%E5%8F%A4%E9%9C%8D%E6%B1%B6%E5%B8%8C2013%E5%B9%B4%E8%AB%87%E7%B0%BD%E8%94%A1%E5%8D%93%E5%A6%8D%E9%81%8E%E7%A8%8B-%E8%94%A1%E6%AF%8D%E7%88%86%E5%A5%B3%E5%85%92%E6%87%B6%E6%83%B0-%E5%BA%8A%E4%B8%8A%E5%90%83%E9%A3%AF