Bloopers You Won't Forget on Instagram: "🎬 🤣 🤣 Julia Louis-Dreyfus was guest-starring in a segment about "The Grump" with Elmo and Telly Monster. The script called for her to say, "The Grump needs to shut up," but she accidentally combined words and let out a "s***" before quickly catching herself. She immediately realizes she just swore on one of the most wholesome sets in television history. Even though they are off-camera, the puppeteers (Kevin Clash as Elmo and Martin P. Robinson as Telly