Tat Ming Pair
In April 2019, Wong performed a duet with Shirley Kwan entitled "Happy End (快樂到死)" which was used as the theme song for the television show "Till Death Do Us Part" (婚內情). In May of the same year, Tat Ming Pair released the song "Memory Is A Crime (回憶有罪)" in honor of the 30th anniversary of the victims of the Tiananmen Square Massacre. It was composed by Lau with lyrics by Lin Xi. The song topped the iTunes chart in Hong Kong but was immediately banned in mainland China where discussion involving the protests and the violent military response is forbidden. On 4 June 2019, Wong performed the song live during the annual Tiananmen Square vigil in Victoria Park.