for other uses, see Rosie (disambiguation)

Ernie christens Rosie.

Rosie is the name of Ernie's bathtub.

When Bert asks why Ernie named his bathtub Rosie, Ernie explains that every time he takes a bath, he leaves a ring around Rosie, referencing the popular nursery rhyme "Ring Around the Rosie."

Rosie makes a rare print appearance in the 1982 book A Sesame Street Christmas, with her name appearing on the side.

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