Seven-foot-tall Talking Carrot
From Muppet Wiki
He is, needless to say, a seven-foot-tall talking carrot. He performed "I Am the Very Model of a Modern Major General" with Gilda Radner in episode 304 of The Muppet Show.
The setup for the gag was that Radner wrote to Kermit before the show, requesting a seven-foot-tall talking parrot for her "Selections from The Parrots of Penzance" number; however, Kermit couldn't read her handwriting and mistakenly booked a carrot.
