The heroine in the "Knowing Football King" advertisement is named Guo Biting.

Bea Hayden, born on January 16, 1984 in Taipei, Taiwan, is a quarter-American ancestry, Chinese film and television actress, and graphic model.

In 2002, Biting Guo made her debut by participating in a beauty contest held in Ximending, Taipei. Since then, Biting Guo has made a name for herself in Taiwan by serving as a print model for fashion magazines such as "BEAUTY" and "RAY".

At the same time, Biting Guo also served as the heroine in many Chinese singers’ music videos. In 2005, Biting Guo starred in her first TV series "Golden Years".

In 2007, Biting Guo starred in her screen debut "Sleeping Youth". In 2008, Guo Biting was called the "Yida Girl" because she took part in the "Yida Chewing Gum" advertisement.