By Emily Sheridan

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Since she leaped to fame in 2008, Katy Perry has been known for her sunny disposition and colourful wardrobe.

But as she addresses her divorce from Russell Brand in the song Wide Awake, the tone of new video is decidedly gloomy.

In contrast to her pink and blue wigs, this time the singer looks brooding in a dark purple wig, purple dress and cape teamed with dramatic make-up.

Scroll down to watch the video

Going to the dark side: Katy Perry goes Gothic in the video for her new single Wide Awake

Going to the dark side: Katy Perry goes Gothic in the video for her new single Wide Awake

Gloomy: Katy's dark make-up and purple hair is a change for her usual bright style

Gloomy: Katy's dark make-up and purple hair is a change for her usual bright style

The lyrics of the song suggest Katy, 27, regrets moving so fast - she and Russell famously got engaged after just three months of dating and married after just a year together.

However, their long-distance marriage soon took its toll and the couple split in December 2011 after just 14 months of marriage.

Katy sings: 'I’m wide awake. I was in the dark, I was falling hard with an open heart. How did I read the stars so wrong. I was dreaming for so long. I wish I knew then what I know now. I wouldn’t dive in, I wouldn’t bow down.'

Crash to reality: Katy admitted the song was a 'dose of reality' after being high for so long

Crash to reality: Katy admitted the song was a 'dose of reality' after being high for so long

Trapped in the darkness: Katy is stuck in a labyrinth with no escape

Trapped in the darkness: Katy is stuck in a labyrinth with no escape

The video starts with Katy wrapping the promo for California Gurls - where she sits on a white cloud wearing a pink wig.

However, as she sits in her dressing room, things quickly turn dark and mystical.

Soon the singer is wondering through a gloomy labyrinth - perhaps a metaphor for feeling lost and unable to see a way out in her marriage.

Temptation: Katy is drawn to a succulent strawberry, which turns out to be poisoned

Temptation: Katy is drawn to a succulent strawberry, which turns out to be poisoned

Seeing double: Katy comes face-to-face with her younger self

Seeing double: Katy comes face-to-face with her younger self

She is then accompanied by her younger self and is confronted with a group of paparazzi.

The negative theme continues as Katy is seen slumped in a wheelchair being pushed by her younger self, before being confronted by two men wearing bull's heads.

After they finally escape the labyrinth, everything becomes colourful and bright again and Katy finds a handsome prince waiting for her.

Need to find a way out: Katy is desperate to escape from the labyrinth of her mind

Need to find a way out: Katy is desperate to escape from the labyrinth of her mind

Bid for freedom: After her younger self scares away two guards by the exit, the singer makes a dash for it

Bid for freedom: After her younger self scares away two guards by the exit, the singer makes a dash for it

However, after initially smiling at him, she then punches him in the face, suggesting she is happy with her single status.

The video ends on a happier note with Katy taking to the stage to perform in concert back in her usual kitsch clothing.

Everything is looking rosy: The two Katys are relieved to have finally escaped

Everything is looking rosy: The two Katys are relieved to have finally escaped

A fairytale ending? Katy is greeted by a handsome prince...

A fairytale ending? Katy is greeted by a handsome prince...

... but punches him in the face: Katy shows her fans she doesn't need a man

... but punches him in the face: Katy shows her fans she doesn't need a man

Explaining the video, Katy told MTV News: This song in particular is a dose of reality. It's kind of like coming down from a high.

'You've been on cloud nine for so long, and it can't always be so sweet and sometimes you need to realise that, and you have to pick yourself up and move forward and face the facts of life and know that this is just a lesson you learn and you're stronger because of it.'

Oops! Katy revealed a bit too much in her nude bodysuit at the MuchMusic Video Awards in Toronto, Canada, earlier this week

Covering up: But Katy kept her head down as she jetted out of Canada the next day

Covering up: But Katy kept her head down as she jetted out of Canada the next day