Lady GaGa unveils 'Marry the Night' video teaser - Watch
The video shows the singer seemingly unconscious, being pushed around on a gurney by two nurses in a hospital.
She narrates a short monologue over the top of the clip, in which she speaks about memories and her "loathing" of reality. She also comments that one of the nurses has a "great ass".
She says: "I don't want to see things exactly as they happened. It's just that I prefer to remember them in an artistic way. And truthfully the lie of it all is much more honest, because I invented it.
"Clinical psychology tells us arguably that trauma is the ultimate killer. Memories are not recycled like atoms and particles in quantum physics. They can be lost forever.
"It's sort of like my past is an unfinished painting. And as the artist of that painting, I must fill in all the ugly holes and make it beautiful again.
"It's not that I've been dishonest, it's just that I loathe reality."
Lady GaGa previously promised that the video will be her longest ever.
She tweeted: "This will be the longest video I've released to date. The beginning of the story I never told you."
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Listen to Lady GaGa's 'Marry The Night' below: