There's been a pretty big nostalgic trend happening recently. If you haven't been paying attention, the 90s are back in vogue. Even Sesame Street is getting in on the action.

Bert and Ernie tell the story of how they met and became roommates on Sesame Street. If the tune sounds familiar, it's because they're parodying the theme song for 90s sitcom "The Fresh Prince of Bel-Air".

Here are the lyrics if you want to sing along:

Now this is a song all about how
My life got flipped, turned up eyebrow
Won’t take long, just a minute you see
We’ll tell you how we became
Bert and Ernie.

On Sesame Street born and raised
Learning letters, numbers –
Singing Sunny Days
Growing up, moving, flying the coup
Said buh-bye to my Mommy,
off to 1-2-3 stoop.

There I met a grouch who didn’t smell too good
Told me to – Scram!
Leave the neighborhood
It was then I remembered what my mom used to say –
Keep your head up, be kind,
and you’ll find your way!

I said “hello” when I got near.
He said –“Oh what’s that,”
I’ve got a banana in my ear.
Wanna be friends who laugh, learn, and share?
Ernie pointed to the seat and said,
“Sit right there!”

Showed him my paperclips,
He thought they were great.
Introduced him to Rubber Duckie as our new roommate.
One half of a whole,
One part of a pair
That’s the story of how we became,
Ernie and Bert –
Put it there!