David Lambert, who plays piano prodigy Brandon Foster, was cast for the role without confirming if he even can play the piano. It turned out he is actually a good pianist.
When Sherri Saum was pregnant with her twins, she thought about naming them Jesus and Mariana. She later then found out they were both boys.
Maia Mitchell and Cierra Ramirez are best friends in real life.
Callie and Jesus barely share any dialogue in most episodes.
Hayden Byerly (Jude Adams-Foster) and Gavin Macintosh (Connor Stevens) were once best friends in real life.