Lyrics:

Ernie: Hi, Bert

Bert: Oh. Hi, Ernie. Hey, I've been sitting here trying to think of what we can do with this here, letter 'L'

Ernie: Oh. Well, let's see. You know one thing, you can sing sort of a 'La La La' song with the letter 'L'

Bert: Uh, what do you mean?

Ernie: Well, there are all kinds of pretty words that begin with 'L'
You know, you can sing a few 'La La La's' and some pretty words, and you'd have a nice little song

Bert: 'La La La,' like that?

Ernie: Sure. Go ahead. Try it

Bert: O.K. Let's see, uh...
La, la, la, la . . . lemon
La, la, la, la, light bulb

Ernie: Uh-huh

Bert: La, la, la, la, lamp post. This is fun!
La, la, la, la, lump in my oatmeal

Ernie: Well, that's not quite what I was thinking about, Bert

Bert: No?

Ernie: I mean there are a lot of pretty 'L' words, and I was sort of thinking of the ones that are more lilting and lovely. You know like...
La, la, la, la, laughter

Bert: Oh, yeah. I see

Ernie: La, la, la, la, lullaby

Bert: Oh, like that. Huh?

Ernie: La, la, la, la, lollypop

Bert: Ahhhhhh!

Ernie: La, la, la, la, lights in the sky

Bert: Oh! Oh! Ernie, I've got a GREAT 'L' word! This is a beauty. Oh, listen to this
La, la, la, LINOLEUM!

Ernie: Ah, no, Bert, uh...
Listen to me
'Cause 'L' is such a lovely letter
For words like 'licorice' and 'lace'
The letter 'L' lights up your face
So why not la, la, la, la, laaaaaaaaaaaaah...

Bert: La, la, la, la, laaaaaaah

Ernie: ...with me?

(Bert laughs)