The Second Orignal Demo for the My Little Pony Adventures (Early FiM/G4!) Theme Song. Sung by Amy Keating Rogers (@KeatingRogers on Twitter/X).
Taken Directly from the 2019 Leaks!

Original Song File Name:
My little Pony2.mp3

Lyrics:
My Little Pony:  Adventures in Friendship
Come on let’s join our Pony Friends.

There’s Twilight Twinkle, a studios pony 
Her studies never seem to end.

But then Queen Celestia of Equestria
Sent Twilight Twinkle on a quest.

To learn about friendship was this pony’s mission
And Twilight does her very best. 

In Ponyville Twilight meets lots of new ponies.
And each of them is special too.

Fluttershy takes care of all the sweet creatures
Her love and kindness coming through

Rainbow Dash races with Pegasus passion
She flies with all her heart

Applejack works hard, just like all Earth ponies.
Putting the pony before the cart.

Unicorn Rarity finds lots of great treasures
And really works to make them shine.

Pinkie Pie’s laughter brings all them together
Six friends who will last through all time.

In Ponyville they find the Magic of Friendship
Will guide them on their way.

My Little Pony:  Adventures in Friendship.
Find friendship every day.  Find friendship every day.