Fifth Harmony's Ally Brooke is flanked by very burly security as she debuts dramatic image overhaul in Dublin in the wake of DOUBLE onstage attack

She was left shaken after being attacked twice last week by overzealous fans.

And Fifth Harmony star Ally Brooke clearly took the incidents very seriously as she left her Dublin hotel flanked by several burly bodyguards on Tuesday, seemingly under the disguise of an all-new look.

The 23-year-old and her bandmates, who rose to fame on X Factor USA in 2012, were surrounded by heavy security as they made their way to the bus amid throngs of excited fans.

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Tense times: Fifth Harmony star Ally Brooke (pictured) was flanked by a burly bodyguard as she left her Dublin hotel on Tuesday after being ambushed onstage twice by overzealous fans last week

Tense times: Fifth Harmony star Ally Brooke (pictured) was flanked by a burly bodyguard as she left her Dublin hotel on Tuesday after being ambushed onstage twice by overzealous fans last week

Despite the security threat, the singer flashed a defiant smile as she stepped out in a tartan dress teamed with barely there nude heels.

Just that day, sharing a picture to Instagram, the pretty brunette revealed that she had undergone a complete image overhaul in the wake of the attacks.

Now cropped and bleached at the tips, she wore her usually long hair in a short textured style and hid her eyes behind oversized sunglasses.

Her bandmate Camila Cabello, wrapped up in a fur coat against the Irish chill, was guided by security past a row of fans wanting selfies.

Chopped: She seemed to be trying something new
Former image: She used to wear her hair long

Image overhaul: Ally (here in May, right) has decided to completely overhaul her look in the wake of the attacks, debuting new blonde cropped hair on Tuesday via Instagram (left)

Brave: Despite the security threat, Ally flashed a defiant smile 

Brave: Despite the security threat, Ally flashed a defiant smile 

Still stylish: She stepped out in a tartan dress teamed with barely there nude heels

Still stylish: She stepped out in a tartan dress teamed with barely there nude heels

Pandemonium: She was ushered onto the bus as crowds of fans gathered to get a snap of her

Pandemonium: She was ushered onto the bus as crowds of fans gathered to get a snap of her

In a hurry? Bandmate Camila Cabello waved at throngs of fans as she slipped past 

In a hurry? Bandmate Camila Cabello waved at throngs of fans as she slipped past 

Carrying a heavy guitar case on her back, she quickly slipped by and hopped onto the bus.

She was joined by fellow members Normani Hamilton, who wore a grungy double denim ensemble and Lauren Jauregui, although Dinah Jane Hansen was nowhere to be seen.

Lauren, 20, layered up with a cropped sweatshirt and leather jacket under a larger denim overcoat.

Making an impression: Fellow bandmate Normani Hamilton wore a grungy double denim ensemble

Making an impression: Fellow bandmate Normani Hamilton wore a grungy double denim ensemble

Going incognito: Lauren Jauregui was also flanked by heavy security as she left the hotel 

Going incognito: Lauren Jauregui was also flanked by heavy security as she left the hotel 

Warding off the Irish chill: Lauren, 20, layered up with a cropped sweatshirt and leather jacket under a larger denim overcoat

Warding off the Irish chill: Lauren, 20, layered up with a cropped sweatshirt and leather jacket under a larger denim overcoat

Ally was ambushed onstage last Thursday in Mexico by a male fan, who slipped past security, attempted to embrace her and then dragged her to the ground.

As thousands of fans looked on in shock, a member of the hired security team stormed behind the interloper, quickly tackling and removing him from the stage.

While the shocking incident appeared to ruffle the 23-year-old slightly, she quickly recovered, leaping back to her feet in a split second and eventually resuming her performance.

Footage of the incident was shared on Twitter, with scores of fans expressing their shock at what they saw. 

Watch out: Normani carried a furry toy in her hands as she walked behind security 

Watch out: Normani carried a furry toy in her hands as she walked behind security 

Monochrome maven: Camila smiled and waved as she greeted her fans
Monochrome maven: Camila smiled and waved as she greeted her fans

Monochrome maven: Camila smiled and waved as she greeted her fans 

Heavy security: The bodyguards made sure fans stood well clear of the bandmates and the bus

Heavy security: The bodyguards made sure fans stood well clear of the bandmates and the bus

Speedy thing: Carrying a heavy guitar case on her back, Camila quickly slipped by and hopped onto the bus

Speedy thing: Carrying a heavy guitar case on her back, Camila quickly slipped by and hopped onto the bus

Ally's encounter with the uninvited guest came just two days after she was grabbed by an over-excited fan when arriving in Mexico.

She later took to her Instagram account to ask for calm - while also sharing that her upcoming shows south of the border was part of a lifelong dream. 

'Just to let you know, I am okay after the airport incident,' she wrote. 'Please be careful and gentle so nobody gets hurt. That was scary. Thank you!' 

Unwanted attention: Ally Brooke was ambushed onstage by a fan as she performed with her Fifth Harmony bandmates in Mexico on Thursday night

Unwanted attention: Ally Brooke was ambushed onstage by a fan as she performed with her Fifth Harmony bandmates in Mexico on Thursday night

Ambushed: It came just two days after  she was grabbed by a fan at the airport when she was arriving in Mexico

Ambushed: It came just two days after  she was grabbed by a fan at the airport when she was arriving in Mexico

How low can you go? It soon became clear that Ally was going to end up on the floor

How low can you go? It soon became clear that Ally was going to end up on the floor

She added: Monterrey, I couldn't be happier to be here! Its been a dream of mine since I was little.

'My favorite singer Selena Quintanilla had many beautiful performances here. And now I get to perform in this city! I am beyond honored & proud (sic).'

Ally sings in Fifth Harmony alongside Normani Kordei, Dinah Jane, Camila Cabello, and Lauren Jauregui. 

It was recently revealed that Fifth Harmony fans are America's most dedicated and powerful group of supporters in the UK, after crushing the competition in The Box Plus Network's Last Fan Standing.  

Oh no you don't! A security guard is hot on his heels as he embraces a clearly stunned Ally

Oh no you don't! A security guard is hot on his heels as he embraces a clearly stunned Ally

Because I'm happy: The fan wears a broad smile as he stares into Ally's eyes

Because I'm happy: The fan wears a broad smile as he stares into Ally's eyes

Squad: Ally is a part of Fifth Harmony with (l-r) Camila Cabello, Normani Kordei, Dinah Jane Hansen and Lauren Jauregui

Squad: Ally is a part of Fifth Harmony with (l-r) Camila Cabello, Normani Kordei, Dinah Jane Hansen and Lauren Jauregui

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