Benny: Yeah! All: All right! B.B. King! B.B.: Thank you! And now I'd like to sing a song about my favorite letter, the letter B. Benny: Oh B, B, I love B! Bert: Nice choice. (sung) B.B: I'm a ruler who loves "B" words So they call me B.B. King Yes, I'm a monarch who loves "B" words So they call me B.B. King Yeah, the blues began with a "B" So, they're the only kinda songs I sing Without the letter "B" There couldn't be a beard Without the letter "B" No, it couldn't have a beard Hey now, what do you think of that? (Benny: Man, I think it's pretty weird Bert: Yeah, you're grooving now. Yeah, play it B.B., play it. He's not called the King for nothin'!) B.B.: Without the letter 'B' There'd be no Bert (Benny: Bye Bert! So much for you!) B.B.: And there'd be no bunny rabbits. (Benny: That's Benny!) B.B.: That's why I'm feelin' blue Without the 'B' there'd be no Big Bird There'd be no Baby Bear There'd be no king B.B. (All: Wow, he vanished in thin air. B.B.: But we do have the Letter 'B'. All: Let's hear it for the letter 'B'!)
https://primoaccordo.net/sesame-street/bb-king.htm