郭采潔 (Amber Kuo - Born February 19, 1986) is a Taiwanese pop singer who made her debut in 2007 with her album 'Invisible Superman' (隱形超人). Kuo started her career most notable for starring in the music video for Tank's "When We Were Young", from the latter's debut album, Fighting, The Law of Surviving. She was also featured in Stefanie Sun 孫燕姿's music video 雨天(Rainy day) and F.I.R阿沁's music video 其實還愛你. Kuo is currently a year four student in National Taipei University pursuing a degree in social work.