"Don’t you find it strange?
Only thing we share is one last name,
Did I beat you at your own game?
Typical of me to put us all to shame,
Welcome to the family jewels,
Coal to diamond,
Sold to fools,
Welcome to the family jewels,
Simmer and suffer,
Can’t keep this cool,
I can’t keep my cool,
I can’t keep my cool,
Family said that I decided to live a loveless life,
Is it my fault we stay divided ‘cause I got too much pride?
Pass the parcel, wrap, unwrap,
And open up the locks,
Out come flying all the secrets of Pandora’s box,
Oh? you think I’m unfit?
Little did you know that I was cut for it,
No glass slipper will ever fit, ‘cause I could never see a diamond in it,
Welcome to the family jewels,
Coal to diamond,
Sold to fools,
Welcome to the family jewels,
Simmer and suffer,
Can’t keep this cool,
I can’t keep my cool,
I can’t keep my cool,”
https://www.youtube.com/watch?v=sxKExvAujeg

Eliza with grandpa in a family portrait, she's his heir, so why not
And the song is a tap towards her parents, especially her dad, no hero, princess of the Nightosphere, Eliza just "yes father, I am nothing like you had hoped for me when I was born, I am sorry, but this is my life,"

"The Family Jewels"-MARINA
Hunson Abadeer-Adventure Time
Eliza-Me