Peng Ye.

1. According to the query of Kugou Music, we learned that the original singer of "I heard the rooster crow early in the morning" was Peng Ye. "I heard the rooster crow early in the morning" is a Chinese children's song, suitable for babies aged 1-6 years old.

2. Excerpt from the lyrics: In the early morning, I heard the rooster crow, oh oh oh oh oh, and opened the window to welcome the dawn. The flowers are fragrant, the birds are singing, the spring scenery is wonderful, oh oh oh oh, today is another sunny day, the green grass is smiling at me, and the green seedlings are growing taller.