Charlene Choi Cheuk Yin, William Chan Ting Wai, Vincy Chan (Wing Yi) and others two nights ago attended a Metro Radio charity karaoke event. Ah Sa has been busy with movies lately. Earlier she and junior colleague Chan Wai Ting even had a kiss scene, but because they were too familiar they felt embarrassed and funny. She later even jokingly gave laisee to her junior colleague, after which they even pretended to kiss. William pointed out at first it was a very light kiss, but they ended up kissing for four minutes and had four bad takes. Did they touch anywhere that they should not have contact with? He joked that his chest felt Ah Sa had something and he had to speak up on her behalf.