What song is better for first grade primary school students to choose for solo singing competition?

"Let's Swing the Oars" and "Insects Fly". "Let's Swing the Oars" is the theme song of the children's film "Flowers of the Motherland" shot in 1955; "" is a poem written by Li Shangchao in April 2013. The work is from "Li Shangchao Poetry Appreciation". These two songs It is in the style of a nursery rhyme with romantic lyrics and is suitable for solo singing by first grade primary school students.