Demi Lovato is opening up about how that on-stage Camp Rock reunion with the Jonas Brothers happened, starting with how Joe reached out about being involved in night one of their Greetings From Your Hometown tour in New Jersey and why it was an instant "let's do this."

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.