It's nothing new that Demi Lovato is a princess in disguise – from her motivational words to her insane makeup looks and ability to laugh off anything thrown her way, the 25-year-old simply has it all. 

Turns out, she's a Disney princess IRL, too.

Tomorrow, I have the ultimate prize model here to help me. @ddlovato

A post shared by Ellen (@theellenshow) on

The singer appeared on "The Ellen DeGeneres Show, "where she came out on stage in a full head-to-toe Cinderella look.

DeGeneres explained she needed a fill-in prize model to help with the game "What's in the Box?"

Lovato hilariously went along with the game, though DeGeneres joked she should stick to her singing career.

Hardcore Lovatics/Disney channel fans will remember that this isn't the first time the singer dressed as a princess.

In 2009, Lovato stood next to Selena Gomez in "Princess Protection Program" – though her more recent costume is certainly superior.

After the prize-filled game, the two ladies sat down to discuss the latest in Lovato's life – her documentary and her tour.

After gushing about "Simply Complicated," DeGeneres asked about the big news she has to share with the audience. 

"I am going on tour!" Lovato said.

Last week, the "Sorry Not Sorry" singer revealed she and DJ Khaled are going on tour together. While the tickets just went on pre-sale, Ellen's audience members were lucky enough to get first dibs for the upcoming show.