This is definitely NOT cool for the summer!
According to sources, Adam Lambert was supposed to open for Demi Lovato on her soon-to-be-announced upcoming world tour.
We are told that the songstress and the Ghost Town artist already hashed out details such as lighting, billing, and most importantly, money!
Related: Demi Lovato Kicks Some Serious Vampire Butt!
However, Miz Lovato's manager had eyes on another pop star…
His own client Nick Jonas!
Insiders say her reps convinced her to swap out Lambert for the Levels hottie, and not surprisingly, Adam is FURIOUS!
According to a source close to the American Idol alum, the decision was
Tags: adam lambert, american idol, artist, celebrity feuds, concert, demi lovato, drama, hottie, manager, money, music minute, nick jonas, pop, tour, world tour