Lady Baba

Lady Baba is a famous sheep singer, spoofing Lady Gaga, that appears in Episode 4727 of Sesame Street.

Elmo attempts to play "Twinkle Twinkle Little Star" on piano, but makes various mistakes, causing Twinkle Twinkle, the titular star, to fall from his place in the sky until Elmo improves. With some magical help from Abby, Elmo becomes a piano virtuoso and attracts a small crowd, as well as Lady Baba, who starts singing along. Abby's magic runs out and Elmo's playing worsens again, making everyone, and Baba, leave.