Story : There's a new Muppet On the block! It is Abby's first day on the street. Can everyon's favorite fairy-in-training overcome her shyness and make new friends? Also in this episode: Law & Order: Special Letters Unit and a performance by John Legend with Hoots the Owl. Special guest Kristin Chenoweth stops by Elmo's World. This episode is brought to you by the letter M and the number 4.