Sesame Street ‘s Oscar the Grouch Wicked ‘s Elphaba (Cynthia Erivo) can relate to each other when it comes to being green - so why not sing about it together? Just ahead of the opening weekend ...

Oscar the Grouch turns 48-years-old on Thursday. The "Sesame Street" character first appeared on the children's series on Nov. 10, 1969.

Escape will cancel and close the window. Oscar the Grouch turns 48-years-old on Thursday. The "Sesame Street" character first appeared on the children's series on Nov. 10, 1969.