Sparkle: Katy Perry has been chosen as the official Global Brand Ambassador for the prestigious hair care brand ghd.

Shimmer: Katy Perry is the Global Brand Ambassador for luxury hair-styling brand ghd.

Megaphone: The glamorous new stills were shot by renowned fashion photographer Ellen von Unwerth in LA.

The stunning and chic photographs were captured by acclaimed fashion photographer Ellen von Unwerth in Los Angeles.

Hepburn: The classic images see Perry sporting an array of covetable, wearable hair looks, and exuding confidence.

Hepburn: In the iconic photographs, Perry rocks a variety of stylish and versatile hairstyles, showcasing her self-assurance.

Katy Perry at the premiere of 'Katy Perry Part Of Me 3D' in London in July.

Katy Perry and her ex-husband Russell Brand attend the MTV Europe Awards 2010 in Madrid.

In a candid moment: Katy Perry shining on the red carpet during the summer and pictured alongside her former spouse Russell Brand back in 2010.

Adventurous: Katy Perry swings from the chandelier in the first set of campaign shots from ghd, released earlier this summer

Bold and daring: Katy Perry is seen swinging from a chandelier in the latest campaign images for ghd, which were unveiled earlier this season.

Faraway eyes: Katy's groomed and glossy look is a world away from her blue haired stage appearance

Katy’s polished and glamorous appearance is a stark contrast to her bold blue hair when she’s on stage.

Chess queen: Celebrity photographer Ellen von Unwerth was also behind these earlier pictures of Katy

Chess queen: Famed photographer Ellen von Unwerth was the creative genius responsible for capturing these earlier images of Katy.

Pretty picture: Katy Perry poses as a mermaid in this February campaign shot for ghd air hairdryer

Killer curls: Katy Perry is styled as a 1920s Evil Queen in a Snow White-inspired photo shoot for the ghd Scarlet campaign in 2011

Gorgeous curls: Katy Perry rocked a 1920s Evil Queen look in a Snow White-themed photo shoot for the ghd Scarlet campaign back in 2011.

All a Twitter: Perry poses in a fringed flapper-style gown as she hangs off a fire escape surrounded by blue birds for a 2011 ghd shoot

Tweeting away: Perry is spotted in a flapper-inspired gown with fringe details while gracefully perched on a fire escape, accompanied by a flock of blue birds during a ghd photoshoot back in 2011.