Nope. It was sung by Big Jeffy (with a green nose, and a headband instead of a hat), and was most likely performed by Jerry Nelson. He sang it with two hippie backup singers (one was lavendar with a small orange nose, long black hair, a dashiki, and a red headband; the other looked like a lavendar-nosed Little Jerry, but with a dark brown perm instead of orange yarn-hair. Both singers had oval vertical eyes). Cookie entered after the first verse, and Grover did after the second. During the "messes up me", Big Jeffy shouted at poor Grover and scared him away!