Raven862 asked about this My Little Pony song, so enjoy your request! I thought maybe during the events of Four's a Crowd, Sofia, Ruby, Jade, and Amber could sing this either as they fix the Flylight Pageant coach, or during the pageant itself.
Sofia: Each one of us has something special
That makes us different, that makes us rare
Amber: We have a light that shines within us
That we were always meant to share
Jade: And when we come together
Combine the light that shines within
There is nothing we can't do
There is no battle we can't win
Ruby: And when we come together
They'll be a star to guide the way
It's inside us every day
Sofia: See it now! See it now!
All: Let the rainbow remind you
That together we will always shine
Let the rainbow remind you
That forever this will be our time
Sofia and Amber: Let the rainbow remind you
That together we will always shine