Joe Jonas, Demi Lovato together again?

MTV reported that Demi Lovato: World Tour held in Los Angeles had a blast last Saturday night. Watch this video below"

As you can see in the video, "Skyscraper" singer Demi Lovato chats wit her fans first, and then she sings the intro of "This Is Me", a soundtrack of "Camp Rock" and a single where she and ex-boyfriend Joe Jonas duets.

While singing the "Camp Rock" track, Joe Jonas suddenly appears and sing along with her. Although she is surprised when ex enters and sings along with her, she continues and joins singing.

As per MTV report, Blink 182 drummer Travis Barker joined the world tour last Saturday, dueting with Demi on drums.

Demi posted a picture on Instagram with a caption:

"Played drums with the iconic @travisbarker at Staples Center. A night I'll never forget. #demiworldtour."

Additionally, the youngest brother Nick Jonas serves as the creative and musical director for this tour. "Skyscraper" singer told MTV:

"He had visions for this tour,"

"And he threw out some ideas and they were really good, and we just thought, 'Why don't you just do the whole tour, please?' so it's turned out amazing and like 90 percent is his work."

Previously, Eonline reported Demi Lovato will appear on solo and self-titled album of Nick Jonas. The solo album consists tracks "Chains" and "Jealous" which had been released lately.