Adam Lambert is not upset with Demi Lovato even after she chose Nick Jonas for her world tour.
Lambert took to Twitter, saying "Aww I love you all very much. No beef tween @ddlovato and @nickjonas and me. Biz negotiations are complex- why do we care about the #rumors?", TMZ reports.
However, a source had revealed that the-33-year-old was very disappointed as he was dropped from the world tour.
Earlier, Lovato's manager, who also manages Jonas, had convinced her to drop the 'Ghost Town' hit-maker.
A source close to the Lambert said that the 23-year-old singer's move was very unprofessional and unethical.
