This is how Legend of the Cybertronian In The Moon goes in My Little Pony Transformers Prime: Friendship is Magic.
[Optimus and Twilight head to Twilight's castle]
Twilight Sparkle: Welcome to the Castle of Friendship.
Optimus Prime: It is an honor for me to be here.
[They enter and go into the library]
Twilight Sparkle: [pulls out a book with her magic] Ah-ha! Here it is! Predictions and Prophesies!
Optimus Prime: Whoa.
[They sit down to ready it]
Twilight Sparkle: Ready?
Optimus Prime: Ready.
[They flip through pages until they come across a page entitled "The Cybertronian In The Moon"]
Twilight Sparkle: Ah-ha! [reads] Elements of Harmony.
Optimus Prime: [reads] See Cybertronian In The Moon.
Twilight Sparkle: [reads] The Cybertronian in the Moon, a legend from olden pony times.
Optimus Prime: [reads] A powerful Transformer who wanted to rule Equestria. Defeated by the Elements of Harmony and imprisoned in the moon.
Twilight Sparkle: [reads] Legend has it that on the longest night of the thousandth year, the stars will aid in his escape.
Optimus Prime: [reads] And he will bring about nighttime eternal and spread chaos throughout the land.
Twilight Sparkle: [gasps] Do you know what this means?
Optimus Prime: Yes. It means we must inform the princesses of the sun and moon right away.