Pretty in pink! Hailey Baldwin debuts bold new hair colour as she steps out with Ashton Irwin in Los Angeles

Hailey Baldwin's rung in her weekend with a new look.

The model was spotted on Saturday strolling down a Los Angeles pavement, her previously blonde hair dyed a rouge hue.

Having debuted the new colour on Instagram that morning, she was out and about that afternoon alongside Ashton Irwin of 5 Seconds Of Summer.

Out and about: Hailey Baldwin was spotted Saturday strolling through the West Hollywood neighbourhood of Los Angeles with Ashton Irwin

The 19-year-old sauntered down Melrose Place wearing a white tank top.She'd tied her hem at the front, flashing her toned midriff.

A couple of strategically situated rips just below its neckline came close to offering a glimpse of her cleavage as she walked. 

From the back, it not only had several more tears, but was also rather sheer, giving a view of the white bra underneath.

Most of her hair was trammelled into a low bun, though she let clumps of it fall free and frame her face. 

New look: She'd dyed her previously blonde hair a rouge hue

Tied up at the hem: The bared her midriff from underneath her sheer and torn tank top

Steal Hailey's off-duty style in coated skinny jeans

She's quickly becoming one of the biggest models on the planet and, if her off-duty looks are anything to go by, it's no surprise.

Rolling around LA with her friend, Ashton Irwin, Hailey Baldwin debuted punky pink locks while wearing a pair of Off White coated skinny jeans - available to buy now at Luisa Via Roma (just click right) - topped off with a pair of Stan Smith's (click below to shop them now).

Off White c/o Virgil Abloh is rapidly becoming a firm favourite of fashion lovers everywhere. Kim and Kourtney sat front row at the SS17 show in Paris earlier this year and Queen Bey has been known to rock an Off White camo jacket on occasion. With that in mind, it's no wonder Hailey's donning these coated denim duds!

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Tight black jeans emphasised her precipitous legs and matched the snakeskin leather purse she carried in her right hand.

Sections at the back of the jeans were painted in black and white stripes with rose patterns splattered atop.

The daughter of Stephen Baldwin accessorised with a tangle of necklaces - including a cross - and a pair of pink cat-eye sunglasses that complemented her hair. She completed the outfit with white trainers.

Having a laugh: The 5SOS drummer wore head-to-toe black for his walk in West Hollywood

Accessorising: She complemented her new hair colour with a pale pink cat-eye sunglases

Beside her, the drummer had slung a pair of black sunglasses from the neckline of a black jumper that draped about his toned figure.

His black trousers were rather tight as well, and the Hornsby native wore what appeared to be a pair of black boots for his stroll through West Hollywood.

Baldwin's Instagram post that morning saw her sipping coffee, her hair cascading freely about her face. Baldwin's caption read simply: 'good mornings'.

That night, another photo saw her in a black hoodie and sweats, lounging in what appeared to be a makeup chair. Her hair was in rollers, her caption heralding 'day 2️'.

'good mornings': She'd debuted the look on Instagram earlier in the day

'day 2': Later on, she gave her Instagram followers an image of her with her hair in rollers whilst she was sat in what appeared to be a makeup chair

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