Ekin Cheng. "Years of Friendship" is the theme song of the 1996 movies "Young and Dangerous" and "Young and Dangerous 2: The River". It was written by Liu Zhuohui, composed and arranged by Chen Guangrong, and sung by Ekin Cheng. It was included in the soundtrack album "Young and Dangerous 2: The Way of the Dragon Movie Soundtrack" released by Sony Music in April 1996. Ekin Cheng, born on October 4, 1967 in Hong Kong, China, native of Enping, Guangdong, is a film and television actor and pop singer in Hong Kong, China.

In 1988, he participated in the Rookie Singing Competition and joined TVB. He entered the industry after filming the "Sunshine Lemon Tea" commercial and became a disciple of Luo Wen. In 1991, he joined BMG Records and debuted as a singer. Beginning in 1995, he became popular by playing the role of Chen Haonan in the "Young and Dangerous" series of movies.