Ray Charles (1930-2004) was a popular musician and singer of soul and R&B music.
1970s: Appeared on a variety show with Kermit the Frog, joining him in a duet of It's Not Easy Bein' Green.
1989: Sang "It's Not Easy Bein' Green" with a chorus of Muppets on the TV special Sesame Street: 20 and Still Counting.
1990: Appeared on The Muppets Celebrate Jim Henson.
1994: Appeared on Sesame Street's All-Star 25th Birthday.