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Danielle, Este and Alana Haim are reinventing the alphabet song — with the Muppets of Sesame Street! The sister trio appeared on Thursday's episode of the iconic children's show to sing a new ...

Professor Grover is the teacher in preschool and Elmo is his helper for today’s alphabet lesson! But before Professor Grover can start, he wants to find one thing that starts with each letter, in his ...

"Music music happy music helps when I feel sad / When I sing a happy song pretty soon the smile's back," he and the Sesame Street ensemble sing on the chorus. Kahan later walks around with his ...