Jessica Alba in a black dress

Jess manages to make top-to-toe black look way more interesting...

Rex Features

Few stars are as sartorially blessed as Jessica Alba; just as confident on the go in her cool, casual get up as she is in a floor-sweeping frock on the red carpet, she's one of the most effortlessly stylist A-list gals around. 

It's down to her savvy fashion sense that we've come to expect great things from the 33-year-old actress, mother and charity do-gooder. However, we're totally weren't prepared for the seemingly endless string of amazing looks she treated us to this weekend as she made her way around New York City. 

Taking a weekend away from her duties as a doting mother, we clocked Jess countless times in NYC and each time she was rocking something new. One of her coolest ensembles of the last couple of days has to be a slick black dress and boot combo, which she wore to attend the Global Citizen Festival alongside fellow Hollywood royalty in the form of Olivia Wilde and Ryan Reynolds. 

With her hair scooped up into an effortless ponytail her boots packing an edgy vibe thanks to their statement buckles, Jessica instantly gave her classic Edun LBD complete with Dalmatian print fastening a way more noteworthy spin. 

It wasn't until we had composed ourselves after swooning over this ensemble that we realised this was but one of FIVE amazing looks that Jess sported across Friday, Saturday and Sunday... 

Before the event, Jessica took the time to grab a coffee with a pal in the city's Downtown area where she looked every inch the style maven. Rocking a clumpy pair of boots, an oversized knitted waistcoat, a rock 'n' roll tee and an on-trend fedora, she manages to pull off the grunge look with the pulled together polish we know and love her for. 

Oh, and we're totally crushing on those gold mirrored aviator sunglasses. Say hello to our new sunglass-obsession... 

Officially on a fashion roll, Jessica's next get-up certainly did not disappoint. Showing off her enviable abs, Jessica opted for a striped sleeveless crop top which she paired effortlessly with wide leg palazzo trousers and barely-there strap heels. Stunning. 

Cinching in her slimline waist with a perforated black leather belt, we reckon that waist belts are about to make a major comeback, and it's all thanks to Jess. 

Taking her casual style up a notch, Jessica looked stunning as she strolled around the city in another sleek outfit.

Sporting a pair of ripped skinny jeans, she gave her ensemble an interesting twist with a grey leather biker jacket and pointed ballerina flats. Finishing it off with a plaid shirt tied perfectly in position around her waist, this is Jessica at her off-duty finest. 

Her most recent outfit brought her weekend to a very stylish close. Choosing to don the same gold-tinted lens sunglasses and black fedora hat, Jess gave her jean and white vest duo a laid back overhaul with her chunky knit cardigan complete with red and blue embroidery. 

After spotting a host of celebs and street style pros rocking a series of thick cardigans already this season, we recommend getting your hands on one pronto. 

Phew! Just thinking of Jessica Alba's outfit changes has made us full of fatigue. So much so, we reckon she definitely deserves an honourable mention for her services to fashion over the last 72 hours... 

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By Maxine Eggenberger