I wanted to take a stab at writing a theme song for the Rainsverse. Here’s my first shot, based off the Lunaverse one. Please let me know what you think and if you have any better ideas for lines.

My little pony, My little pony
Ahh ahh ahh ahhh...
My little pony
Friendship never meant that much to me
My little pony
But you're all here and now I can see
Lightning’s glory; Song of thunder
A loyal servant; Chains are sundered
Serving kindness; It's an easy feat,
And magic makes it all complete!
You have my little ponies
How'd I ever make so many true friends?

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I really like it. Might find a different rhyme for the second and third to last verse's; that one is really common.