and lots of other instruments too!

She's also a singer.

So while Elmo brushes his teeth,

please welcome miss Sara Bareilles!

- Thank you Elmo!

Thank you, Elmo.

We're so excited to be here.

I've brought two of my favorite, most bestest friends.

This is Mona Tavakoli and Chaska Potter.

We're gonna sing one of my favorite lullabies

and we also brought a very special friend to sing with us.

- Hi everybody!

- Yay, Big Bird!

- Hi Sara.

- I'm so glad you're here to sing this with us.

- Oh, my too.

I'm so excited.

- Okay, let's see what happens.

We'll remember the words.

(acoustic music)

♪ Twinkle, twinkle, little star ♪

♪ How I wonder what you are ♪

♪ Up above the world so high ♪

♪ Like a diamond in the sky ♪

♪ Twinkle, twinkle, little star ♪

♪ How I wonder what you are ♪

♪ I put my head on the pillow at night ♪

♪ I look up and there you are, shining bright at me ♪

♪ And you help me sleep easy ♪

♪ I put my head on the pillow at night ♪

♪ I look up and there you are, shining bright at me ♪

♪ And you help me sleep, easy ♪

♪ Twinkle, twinkle, little star ♪

♪ How I wonder what you are ♪

♪ Up above the world so high ♪

♪ Like a diamond in the sky ♪

♪ Twinkle, twinkle, little star ♪

♪ How I wonder what you are ♪

♪ I put my head on the pillow at night ♪

♪ I look up ♪

♪ My head on the pillow at night ♪

♪ I look up and you help me sleep easy ♪

♪ I look up ♪

♪ My head on the pillow at night ♪

♪ I look up ♪

♪ My head on the pillow at night ♪

♪ I look up and you help me sleep easy ♪