The always adorable Demi Lovato had a special duet partner for her Los Angeles show at the Greek Theatre. Who shared the stage with the 'X Factor' judge?

"Give it up for my friend," Demi revealed, grinning, "Nick Jonas!"

The blonde-and-pink-haired starlet and Jonas launched into a beautiful acoustic rendition of 'Catch Me,' a song she likely would have dedicated to Nick's big brother Joe at some point. Shortly after, Lovato picked up an electric guitar of her own, then smiled at Jonas and giggled, "I think we wrote this song together, right?"

Then the duo launched into a lovely duet of 'Don't Forget,' the title track of her album that preceded 'Unbroken.' Lovato looked stunning, as usual, rocking a gunmetal studded and sparkly dress, black tights and black fringed motorcycle jacket. Towards the middle of the song, Lovato and Jonas began strumming in time, almost as if they were playing for one another. It was really cute and sweet to watch, as there's a clear mutual admiration and respect there. We're glad they're still tight after all the drama that went down between Demz and Joe (and Nick and Selena Gomez)!

Watch the super cute and sonically gorgeous performance below. We think they should duet more often!

Watch Demi Lovato Duet With Nick Jonas