The "Avalor Birthday Song" is a song sung both by Francisco and Princess Isabel in the Elena of Avalor episode, "Island of Youth". Throughout the episode's subplot, Francisco and Isabel played different versions of the song. One that has a sweet and gentle tone while the other is an upbeat rock tempo. By the end of the episode, Francisco and Isabel combined their different versions into one beautiful music piece.
Today is your birthday, we're all here for you
So make a big wish, and it will come true
You're one more year older, and so we all say
We love you Esteban on your special day