Lady GaGa has claimed ''fame is not all it's cracked up to be''.

The 31-year-old singer is gearing up for the release of her documentary 'Gaga: Five Foot Two' - which premieres on Netflix on Friday (22.09.17) - and has taken to Instagram to share a lengthy message with her fans in which she says the movie explores the ''lonely'' and ''isolating'' parts of fame.

Part of the message read: ''With 'Gaga: Five Foot Two', I found myself witnessing myself in a way I am unable to see on my own. I felt proud, I felt sadness, I felt empowered, I felt vulnerable ... but what struck me the most was the film's authenticity in the way Chris [Moukarbel], the director, chose to show my lowest lows, my highest highs, and the close relationship with my family that I clung to fiercely while writing my album 'Joanne'.

''Although surreal, happy and also hard, I'm most touched that the veil behind the aura of my fame reveals that fame is not all it's cracked up to be. It is lonely, it is isolating, and it is very psychologically challenging because fame changes the way you're viewed by people. For me, it feels very unnatural, but complicated because I know it is my destiny to be a performer.''

And the 'Million Reasons' hitmaker also took a moment to thank her fans for their support, and promised they would always see the ''true'' Gaga.

She continued: ''I saw this film for the first time with everyone in the Princess of Wales Theatre at the Toronto International Film Festival. And I am happy that I trusted the creative process with Chris in this way. I could not possibly be objective about myself. This is a collaboration where I blindly went 'all in' because I trusted his talent and he believe in mine. Thank you little monsters. I might not always give the world exactly what they expect of me. But make no mistake, it is always the true me.''

The photo was then captioned: ''A message from me about GAGA: FIVE FOOT TWO. The documentary is available worldwide at 12:01am PT tonight on @Netflix (sic)''