Here Comes Peter Cottontail

Here Comes Peter Cottontail is a 1971 Easter television special made by Rankin-Bass, based on a 1957 novel by Priscilla and Otto Friedrich entitled The Easter Bunny That Overslept and featuring the title song "Here Comes Peter Cottontail"; it was originally broadcast on ABC-TV, and in later years, appeared on CBS. In 2006, it was followed by a direct to video sequel, Here Comes Peter Cottontail: The Movie. The name "Peter Cottontail" comes from a series of books by Thornton W. Burgess, who co-wrote the special, although it is not based directly on the books. It is a story on how Peter Cottontail became the Easter Bunny.

Source: Wikipedia