Big Bird and Elmo sing a special song for two friends to sing together. As they get ready to sing the song again, Abby appears. She asks if she can sing, too, but Big Bird realizes they can no longer sing their song about two friends because they are no longer two friends- two friends plus one friend makes three friends! The three friends decide to explain their predicament to Gabi. Gabi suggests they sing a song about the number three, but they don't know a song about three. As they are trying to figure out a song, Abby says it's too bad they can't come up with a song of their own... but maybe they can! With Elmo and Abby's encouragement, Big Bird starts the song. "You and you and me . . . one, two, three!" Elmo and Abby catch on and happily join in . . . until a little boy comes along and they now have to think of a song about the number four! EDUCATIONAL OBJECTIVE: Mathematic