Elmo tries practicing the song on piano, but gives up after too many mistakes, when Twinkle Twinkle falls from the sky. He tells Elmo this happens every time someone gives up on playing his song and until they get it right, he will remain on the Earth and lose his twinkle. Elmo makes various attempts to improve, with help from Grover ("The Music Monster") and Abby's magic, but ultimately, Telly convinces him to keep practicing until he gets it right. Twinkle Twinkle stays with Elmo all day and into the night as he practices and practices until he finally plays the song correctly. He and Elmo sing a duet as he rises back to his spot in the sky, twinkling once more.