Given the task definition and input, reply with output. Given a passage and a question, find the answer to the question based on the passage. The answer should consist of only one word that lies in the span of only one of the sentences in the passage.

Paragraph: Feist performed an alternate version of '' 1234 '' on Sesame Street during its 39th season ( 2008 ) , teaching children to count to the number four . She said working with the Muppets was a career highlight .
Question: who sings the 4 song on sesame street
Feist