He starred as Joseph Lucas on the Disney Channel original series Jonas, and released his debut solo studio album, Fastlife in October 2011.
"There are so many crazy rumors flying around today," Lovato Tweeted.
Joe Jonas and Demi Lovato did date, but they are no longer together.
Rumors about the couple began to spread after their on-screen romance in the movie "Camp Rock," but the couple did not officially announce that they were dating until March 13, 2010.
Ex-Jonas Brothers member Joe Jonas has spoken out about his past romances by explaining his short relationship with Demi Lovato.
According to Jonas, he stayed with Lovato to help her deal with a developing drug problem.
I felt like I needed to take care of her, but at the same time I was living a lie, because I wasn't happy but felt like I had to stay in it for her, because she needed help.
I couldn't express any of that, of course, because I had a brand to protect. Things kept building up, and Demi ended up punching a girl in the face on a plane, because she thought the girl was blaming her for something.
Like I wanna sit and talk to you in person but like, I love you, it's all good, we're always gonna be friends.'She accessorised with a heavy silver chain and what appeared to be a very blingy engagement ring although the Neon Lights singer has yet to confirm that she and her on again/off again boyfriend, actor Wilder Valderrama, are tying the knot.
Although it might be a little awkward considering Demi once dated Nick’s big bro Joe, we say good luck and why not!
Joseph Adam "Joe" Jonas is one of Demi Lovato's friends and her ex-boyfriend. He was a member of the Jonas Brothers, a pop-rock band made up of him and his two brothers, Nick and Kevin.
Demi said that they had started out as best friends, but decided to take their friendship to the next level.
She said: "Being best friends for a while, over time feelings grow, and for me, as much as I wanted to deny it, the feelings were always there." On May 24, 2010, Demi announced on her Twitter that they had split, but intend to remain friends.