Chinese singer Li Yuchun performs at her solo concert held at the Shanghai Grand Stage on Sunday, March 9, 2008, ahead of her 24th birthday on Monday. At the show, Li Yuchun shed light on "Cha Sheng" ("Bad Student"), her first single this year which she co-wrote and also directed its music video. Emerging on the scene by winning the 2005 Super Girl, a singing competition similar to American Idol, the former tomboy has already had two full-length albums to her name. [Photo: ent.sina.com.cn]