Lovato admitted she felt "nervous" as she and the JoBros, who reached out "last week" to ask if she would join them on stage, sang "This Is Me" and "Wouldn't Change A Thing," two tracks from the beloved Disney Channel movie that she hasn't performed in years.

"We’ve been through so much together," the singer said of her fellow Disney Channel alums. "It was really, really great to spend time with them."