Lady GaGa claims she's been ''betrayed'' by those closest to her.

The 'Applause' hitmaker has hit out at ''mismanagement'' which left her without enough time to shoot a video for 'Do What U Want', her collaboration with R. Kelly from her latest album 'ARTPOP', and went on to suggest she was being overworked to make more money for other people.

She wrote on her Little Monsters website: ''It is late because, just like with the Applause video unfortunately, I was given a week to plan and execute it. (sic)

''It is very devastating for someone like me, I devote every moment of my life to creating fantasies for you.

''All my most successful videos were planned over a period of time when I was rested and my creativity was honored.

''Those who have betrayed me gravely mismanaged my time and health and left me on my own to damage control any problems that ensued as a result.

''Millions of dollars are not enough for some people. They want billions. Then they need trillions. I was not enough for some people. They wanted more.

''I am very grateful to the photographers and designers who have always stood by me to make sure my fans are never aware of the things that happen behind the scenes, but unfortunately after my surgery I was too sick, too tired, and too sad to control the damage on my own. My label was not aware that this was going on.''

The 27-year-old singer - who was forced to cancel a string of shows on her 'Born This Way' tour to undergo delicate hip surgery last year - is now confident her career is back on the right track.

Gaga insisted: ''The next few months of ARTPOP will truly be its beginning. Because those who did not care about ARTPOP's success are now gone, and the dreams I have been planning can now come to fruition.''

The singer's lengthy post assured fans her comments were not aimed at her record label Interscope, leading to speculation they were directed at her former longtime manager Tro Carter, who she split from last year.

She went on to ask fans to give her a chance and open their hearts so they can become ''stronger as a unit'', adding: ''Let me be for you the Goddess that I know I truly am, let me show you the visions that have been in my mind for two years.

''I love you. Forgive me monsters. Forgive me ARTPOP. You are my whole world.''