"Celebrity Lullabies" is a Sesame Street sketch/song featuring Elmo and Ricky Gervais. When Elmo can't get to sleep, Ricky Gervais appears in his bedroom, armed with a guitar. Saying he's from Celebrity Lullabies, he and Elmo have a misunderstanding of his celebrity status. Ricky then sings Elmo a lullaby using words that begin with N ("It's a great letter to fall asleep to.")