One frog sang [WorldCat Entities]

"Introduces the numbers one through ten as more and more frogs join in the evening song. Count on these frogs for a luminous read-aloud bursting with lyrical sound play and visual surprises."@en
"Introduces the numbers one through ten as more and more frogs join in the evening song. Count on these frogs for a luminous read-aloud bursting with lyrical sound play and visual surprises."
"As the night becomes still, one big frog lets out his croaking song, followed by two tiny friends, until groups of as many as ten frogs have all joined in, in voices of all sorts, but when a car passes near, all songs are silenced."

One frog sang