My Unexpected Friend is a deleted song from the 2014 Disney/Pixar animated television special, Toy Story That Time Forgot.
Background
The song was about Reptillus Maximus' expression for Trixie during her first encounter with him done in the style of karaoke inspired from the 1980s. While not sung in the final version of the TV special, there are two karaoke video versions of the song released as a bonus feature in the 2015 Blu-ray and Digital releases of the film: one sung by Reptillus Maximus and one where the viewer has the option to sing with the lyrics onscreen.
Lyrics
This feeling you've unleashed
It is glorious
In the battle for my heart,
You're victorious
This lore that I sing is the story of us
Until the end
My unexpected friend
You speak in mirthful tones
Laugh amongst the ancient stones
Make me question all I know
More majestic than the Arena of Woe
The curve of your frill
It makes my heart race
This feeling's as plain as the horn on your face
'Til your return,
this heart shall burn...
This world you reveal
It is glorious
In the battle of love,
you're notorious
This lore that I sing is the story of us
What does this portend?
My unexpected friend
You're not like other girls
Who fight beside us in this Battle-y world
I long to march by your side
As the Elders gaze upon us with rapturous pride
Your voice is more pleasing than Goliathon screams
Your name shall be carved on the Tower of Dreams
The Elders shall sanction this obsession
This world that we share
It is glorious
In the battle for my love,
you're victorious
This lore that I sing is the story of us
Until the end
You'll be my unexpected friend