Not long ago, Charlene Choi (蔡卓妍) expressed the products were beautiful and realistic at an opening ceremony of a boutique. When mentioned about 2021 marked 20th anniversary for Twins, Charlene replied she begun to prepare the concert in 2019 and hoped it will be organised in May, but believed there was slim chances: “I specially invite music composer Ronald Ng (伍樂城) who composed the song (明愛暗戀補習社) for Twins and the theme song is a slow song this time. Also, we will be announcing the details for products which serve as memories. Hopefully, we could complete it this year.”