Wisteria cover soledad in Westlife
Superstar cover for girl's China girl.
Okay, it's time to answer the question.
Keisuke Kuwata's "Fruits of True Summer" (Jacky Cheung's cover "Love You More Every Day")
Nanri Yuuka's "Blessing" (the cover of Eva Huang's "Unholy Iraq")
Mika's Lollipop (there is a Chinese version that can't remember who sang it, and Chris Lee's why me is suspected of copying this song).
After Aminai's "Into a gust of wind" (Fish Leong's cover of "The Open Hand of Little Hands")
Blue "Get Up" (Phoenix Legend's "Above the Moon" is suspected of copying this song)
Funky Monkey Baby "KINOMOTO SAKURA" (Inspur Brothers and Jay Chou cover "You are my OK")
Kiroro "A Long Time" (Rene Liu's cover "Love You Very Much")
Well, that's all I can think of for now. I hope I can help you, hehe.