The singer’s wife, Hailey Bieber, showcased Justin’s brand new haircut via Instagram on April 18, 2019. [Photo: Instagram]

The ‘High School Musical’ actor went from boy next door to rockstar thanks to a bottle of peroxide which he paired with contrasting dark facial hair. [Photo: Getty]

Emma Stone dyed her trademark ginger locks an auburn shade. The ‘La La Land’ actress debuted her new look at the 30th Annual Producers Guild Awards in Beverly Hills. [Photo: Getty]

When: 17 January 2019
The supermodel sported a new cropped, curly do complete with blonde highlights at the Louis Vuitton Menswear Fall/Winter 2019-2020 show during Paris Fashion Week. [Photo: Getty]

When: 8 January 2019
John Travolta debuted his natural bald-headed look on his Instagram account. [Photo: Instagram]

When: 3 January 2019
Actor Isla Fisher, who is married to comedian Sacha Baron Cohen, underwent a serious hair transformation to mark the beginning of a new year, swapping her trademark red locks for a blonde look. She shared a picture with her Instagram followers, captioning the image: “Go blonde in ‘19 or go home.” [Photo: Instagram]

When: 16 November 2018
Singer Ariana, famous for her Rapunzel-esque ponytail, debuted her shorter ‘lob’ hairstyle to 134 million followers on her Instagram account following her break-up with now ex-fiancé Pete Davidson. [Photo: Getty/Instagram]

When: 27 September 2018
‘Game of Thrones’ star Emilia Clarke chopped off her shoulder length locks to reveal a short ‘do very similar to Gwyneth Paltrow’s look in ‘Sliding Doors’. [Photo: Getty/Instagram]

When: 29 July 2018
Kim Kardashian is renowned for her poker straight locks but when the reality television star revealed her ‘mum’ bob via Snapchat – fans couldn’t get enough. Hands up, who else is tempted to take a snap of the hairdresser’s? [Photo: Getty]

When: 27 July 2018
The Kardashian/Jenner sisters are always trialling out new hairstyles so it came as no surprise when Khloe debuted a slick ‘lob’ on Instagram. [Photo: Getty/Instagram]

When: 19 June
Actress Jessica Chastain is known for her long red locks, so we were shocked when she decided to lob them off in the name of a summer cut – but WOW does it look good. Hairstylist Renato Campora gave her a cut just above the shoulders and styled it into edgy waves. We’re half convinced to do the same.
[Photo: Getty/Jette Stolte]

When: 15 April
Kylie Jenner is famed for changing her hair colour (or donning a plethora of wigs) every so often. And for this year’s Coachella, the new mum didn’t hold back and debuted a blue denim look. [Photo: Getty]

When: 14 April
Yes, Kylie Jenner has earned two top spots for her ever-changing look. Before debuting a denim hue at Coachella, the social media mogul opted for neon pink.

When: 28 March
At the March For Our Lives concert, Ariana Grande surprised fans by arriving on stage wearing newly ice blonde hair in a low ponytail.
[Photo: Getty]

When: 3 April
The actress, made famous for her iconic role as Blair Waldorf in ‘Gossip Girl’, debuted a platinum blonde lob on Instagram. [Photo: Getty/Instagram]

When: 26 March
Kylie Jenner is famous for her changing hairstyles and after welcoming her first child, the social media mogul has gone back to blonde. She took to Instagram to share a snap of her new look. [Photo: Getty/Instagram]

When: January 11 2018
Emma Roberts debuted her new micro fringe at the 2018 Critics’ Choice Awards and it’s a far cry from her go-to side parting. [Photo: Getty]

When: 6 January 2018
From the famous pixie cut to her middle-parted tresses come the early noughties, Emma Watson is no stranger to switching up her hair. So fans were thrilled when the actress debuted her new cropped fringe on social media at the Bafta Tea Party. We even managed to sneak a closer look when Watson graced the red carpet at the 2018 Golden Globe Awards… [Photo: Getty]

When: December 27
Beyonce shared a photo of her chic new vintage do.
[Photo: Getty/Beyonce]

When: November 23
The star of ‘The Crown’ showed off a brand new pixie cut at the premiere of the new season.
[Photo: Getty]

When: October 26
The 13-year-old ‘Stranger Things’ star was barely recognisable with her long straight hair while celebrating the premiere of the second season. It’s definitely a world away from Eleven’s shaved look.
[Photo: Getty]

When: October 24
The 38-year-old actress showed off a new pixie crop. Katie revealed that she’d cut her locks for a role in new film, ‘The Doorman’.
[Photo: Getty/Rex]

When: October 23
The 19-year-old actress only had to cut in a full fringe to cause a stir.
[Photo: Getty]

When: October 23
Has the Kardashian matriarch actually gone blonde? Or is it simply a Halloween prank? Only time will tell.
[Photo: Getty/Instagram]

When: October 12
Bella asked her fans if they liked her new shorter do which could be a sign that the former Disney star is putting her wilder days behind her.
[Photo: Getty/Instagram]

When: October 12
Lena’s blonde quiff was already stand-out but she’ll be unmissable now thanks to her new blue dye job.
[Photo: Getty/Instagram]

When: October 10
The youngest Jenner sister has dyed her hair once again, going for a more subtle grey blonde shade than her previous rainbow colours.
[Photo: Getty/Instagram]

When: October 8
Brunette Ariana is no more for the pint-sized singer showed off her new grey locks on Instagram.
[Photo: Getty/Instagram]

When: October 4
Cara swapped her platinum blonde pixie cut for a chocolate brown do with a choppy fringe.
[Photo: Getty/Shutterstock]

When: October 2
Marion showed off her brand new blonde do at Valentino’s SS18 show. Whether the fresh look is for a film role or her own personal choice, only time will tell.
[Photo: Getty]

When: September 27
Nina debuted a sharp 1920s style bob at the premiere of her latest film, ‘Flatliners’.
[Photo: Getty]

When: September 6
Kim rocked up to Tom Ford’s SS18 show in New York with long silvery locks.
[Photo: Getty]

When: August 18
The ‘Girls’ star went from mousy brown to a fiery red, keeping her blunt fringe and shoulder-length hair.
[Photo: Instagram]

When: August 5
The singer swapped her luscious black locks for an edgy turquoise do while out in Barbados.
[Photo: Getty/Instagram]

When: August 4
Emma ditched her lengthy brown hair for a chic blonde bob.
[Photo: Instagram]

When: July 25
The actress went from American bombshell to shaven-headed star for her role in upcoming film, ‘Sister’.
[Photo: Getty/Backgrid]

When: July 3
The supermodel went platinum, debuting her new stand-out look at Dior’s recent couture show.
[Photo: Getty]

When: May 21
Salma boldly chose a rose-coloured do for a swanky event at Cannes Film Festival.
[Photo: Getty/Instagram]

When: May 1
The youngest Hadid sister showed off her new sleek bob at the 2017 Met Gala.
[Photo: Getty]

When: May 1
Cara chopped her hair, went platinum blonde, then shaved it all off to play a cancer patient in an upcoming film.
[Photo: Getty]

When: March 8
Kristen Stewart went for the crop, debuting her blonde buzzcut back in March.
[Photo: Getty]