The original singers of the song "Treading on the Road to Happiness" are Li Shuangjiang and Wang Zuoxin. "Two Feet on Happiness" is the opening and ending theme of "Our Cow is 100 Years Old" produced by Lu Shanghai Film Studio in 1983. It was written by Liu Changqing, composed by Xiao Heng, and sung by Li Shuangjiang and Wang Zuoxin. Therefore, the song "Two Feet on Happiness" Lu was originally sung by Li Shuangjiang and Wang Zuoxin. Li Shuangjiang was born on March 10, 1939 in Harbin, Heilongjiang Province, China. He graduated from the Central Conservatory of Music. He is a tenor singer, vocal educator in mainland China, a national first-class actor, and a distinguished professor at the Conservatory of Music of Henan University of Technology. Wang Zuoxin is the first Ph.D. in vocal arts from the Department of Music at New York State University and the first real Ph.D. in music from my country to study in the United States. He is currently a teacher at the Shanghai Conservatory of Music.