dLovatohotel051910_01.jpgDisney star Demi Lovato has cancelled the rest of her concert tour with the Jonas Brothes and has checked in to a treatment center to "seek medical treatment for emotional and physical issues she has dealt with for some time," according to a statement released to X17online by the actress-singer's rep.

"Demi has decided to take personal responsibility for her actions and seek help. She is doing just that. She regrets not being able to finish her tour, but is looking forward to getting back to work in the near future."

Lovato dated her Camp Rock co-star and tour partner Joe Jonas earlier this year but Joe broke it off in March over the phone.