In 2007 alone, a few singers were suspected of lip-syncing during commercial performances. For instance, the South Korean singer Kang Seung-yoon attended a mixed concert in Wuxi, and some fans pointed out that he might probably be lip-syncing. Similarly, in 2007, when Ayumi Hamasaki held her concert in Hong Kong, Eason Chan very tactfully mentioned that Ayumi Hamasaki seemed to have the suspicion of lip-syncing.