VIDEO : Sesame Street Cast Sing 'Sing' for Caroll Spinney's Retirement

According to Comicbook.com, earlier this month Caroll Spinney, the man who voiced the beloved Sesame Street characters Big Bird and Oscar the Grouch announced his retirement after nearly 50 years on the iconic children's show. To honor Spinney, the Sesame Street cast has gathered for a very special tribute.