Never underestimate the reach of Taylor Swift's squad powers.
Last night the pop megastar popped up at the Tommy Hilfiger show to support A-list supermodel buddy Gigi Hadid. Swift was placed front and centre, dressed head-to-toe in a sailor-inspired outfit from Hadid's new collection.
So far, so innocent. She's a fashion fan and a supportive friend.
The 26-year-old hitmaker was also preparing to deliver a carefully orchestrated mic drop in the Swift/Harris saga that has rumbled on all summer.
When the models began to saunter out for their final turn on the carnival-themed catwalk, what song should play them out?
It had to be ... it was: This Is What You Came For.
As Hadid strutted down the runway, Swift whipped out her phone and filmed herself singing along to the contentious ditty that was so instrumental in her break-up with the Scottish DJ.
She then posted the clip to her 91 million Instagram followers.
Ooh, she is good.
It's likely that Hilfiger and Hadid were in on the video stunt. A celebrity front row is no longer enough: shows need drama.
Swift secretly wrote and sang on the award-winning hit under the pseudonym Nils Sjodberg when she and Harris were still an item.
It then played a huge part in their messy split, with Swift reportedly ending things with the 32-year-old in June over lack of recognition for the song - a collaboration between Harris and Rihanna - before leaking her involvement to the press.
Harris argued that he was acting on Swift's wishes to keep their joint creation a secret, and accused the singer and her reps of making him "look bad" to generate publicity.
It also triggered a seemingly relentless emoji war between Swift lovers and haterz (Hearts vs Snakes).
Swift's latest move comes just days after Harris discussed their split in GQ, telling the magazine that “all hell broke loose” after their break-up.
“It's very difficult when something I consider so personal plays out very publicly,” he said. “The aftermath of the relationship was way more heavily publicised than the relationship itself.”
Over to you, Calvin.
Front row stars at New York Fashion Week?
Dylan Lauren, Ricky Lauren, Haley Bennett, Julianne Moore, Liv Freundlich, Rosie Huntington-Whitely, Annabelle Wallis and Jessica Alba
On the front row at Ralph Lauren.
Velvet isn't going anywhere is it? Rosie's ramping up the '90s theme with a decadent choker and smoky eyeliner at Ralph Lauren.
Glamour meets grunge at Ralph Lauren.
In a black dress and matching lace trimmed jacket at Ralph Lauren.
Giving good jacket game at Naeem Khan.
Karlie Kloss, Toni Garrn, and Romee Strijd
All going for a pared back look at the Boss Womenswear show.
In a sleek check suit for the Marchesa show.
Emily Blunt and Sienna Miller
Polka dot pals at Michael Kors.
Sienna Miller and Anna Wintour
They're sharing a laugh at Michael Kors.
In her signature shades on the Kors frow.
Alexandra Richards, Theodora Richards, Harley Viera Newton, Jessica Hart and Princess Maria-Olympia of Greece and Denmark
Rockstar royalty and actual royalty, at Michael Kors.
Providing jumper inspiration at Michael Kors.
Check out those hems, at Michael Kors.
Toting a bucket bag, at Michael Kors.
We're officially in the market for a little white dress thanks to Jess' Narciso Rodriguez number.
Lady Gaga and Naomi Campbell
Both heading for the front row at Brandon Maxwell.
Jasmine Sanders, June Ambrose, Cynthia Erivo, La La Anthony, Emily Ratajkowski and Chloe Sevigny
All got the LBD memo at Vera Wang.
TK Wonder and Cipriana Quann
Their very own fashion show, on the front row at Reem Acra.
Winona Ryder and Millie Bobby Brown
Keeping it casual, at Coach 1941.
Dressed in Coach 1941 SS17 - including those on point accessories - for Tuesday evening's show.
Chloe Grace Moretz
Making her first show appearance of the season in a black leather jacket and matching skirt at Coach 1941.
In a studded baseball jacket fro the Coach 1941 frow.
Waving from the frow at the Tory Burch show on Tuesday morning.
In her signature flared jeans and navy mac.
In head-to-toe Tory Burch for the show.
In a form-fitting black and grey dress for Zac Posen - one of her favourites.
In a sheer black and gold dress at Nolcha.
Mia Moretti and singers Lissy Trullie and Kitty Cash
The trio of DJs are at 3.1 Phillip Lim.
Ciara, Anna Wintour, Venus Williams and Caroline Wozniacki
At the Serena Williams show.
Piling on the accessories at Serena Williams Signature Statement Collection By HSN.
Martha Hunt, Emily Ratajkowski, and Nina Agdal
Flying the DKNY flag.
In a long DKNY shirt for the show.
Front and centre at Proenza Schouler on Monday.
In a bright rayon knit guitar dress by Jeremy Scott, at Jeremy Scott.
Russell Westbrook, Tinashe and Teyonah Parris
Proof the air-kiss is officially over, at Jeremy Scott.
In a bauble embellished knit dress at Jeremy Scott (where else).
In a navy blue knitted crop top with daisy detail and navy palazzo pants at the Carolina Herrera presentation on Monday morning.
Teaming her monochrome print shift dress with a neat top knot and orange lip at Carolina Herrera.
The Orange Is the New Black star ramps up the glamour at The Blonds in a monochrome print body suit and sweeping hot pink coat.
Slaying in a dress by The Blonds at the show.
Kelly Osbourne, Christina Milian, Dascha Polanco and June Ambrose
Gramming at The Blonds.
Olivia Palermo, Ashley Graham and Caroline Wozniacki
Sticking to a monochrome palette on the front row at Prabal Gurung.
High velvet boots are having a moment at Fashion Week and Diana Gordon's are among our favourite spots on the frow at Prabal Gurung.
In a matching stripey Michael Kors bandeau top and choker with polka dot palazzo pants at the Michael Kors Access party.
Jaden Smith and Sarah Snyder
Hood By Air SS17, aka date night.
Jussie Smollett and Naomi Campbell
Watching Hood By Air.
Mixing her prints for Altuzarra.
Reigniting our love affair with pink clothing in a dress from Altuzarra's Resort 2017 collection.
Lais Ribeiro, Hailey Clauson, Jamie Chung, Sophia Bush, Olivia Culpo, Danielle Snyder, and Cara Santana
Bringing 100% glamour to the Cushnie Et Ochs frow.
Brooklyn Beckham and David Beckham
On the frow at Victoria Beckham, where else?
In Alexander Wang's new unisex range for Adidas Originals, at the designer's celebrity-packed show.
Madonna and Lourdes Ciccone Leon
A sweet mother-daughter moment as the pair take in the surf-inspired collection.
Embracing the rib knit fabric trend in a black strappy dress at Alexander Wang.
In a black silk slip dress and belt buckle choker on the front row at Alexander Wang.
Tyga and Kylie Jenner
Kylie's wearing Alexander Wang for the show.
Who runs the world? At Alexander Wang.
Pamela Anderson and Dylan Lee
In matching black for the Alexander Wang presentation.
The Mr Robot star is looking sharp on the Wang frow.
Matching her autumn beauty look to this statement AW jacket at Alexander Wang.
will i am, Chaelin Lee, Madonna and Skrillex
Backstage at Wang
Alexander Wang and Madonna
Larking around with the designer's "Wangfest" branded beer hat backstage.
In a black textured mini and oversized denim jacket at the Fashion Week launch of Knot On My Planet, a campaign led by model Doutzen Kroes to support the Elephant Crisis Fund.
In a navy blue halter with cutaway shoulders and delicate bead detailing at Jonathan Simkhai.
Kylie Jenner and Jordyn Woods
It's all about the denim for these two at Jonathan Simkhai.
Pairing her embellished jeans with a white layered off-shoulder top at Gentle Monster.
Christina Hendricks, Pamela Anderson, Neve Campbell, Jaime Alexander and Ashley Graham
Watching Christian Siriano's show.
June Ambrose, Coco Rocha and Kelly Osbourne
At Christian Siriano.
In a spaghetti strap suede dress and matching cape at Christian Siriano.
Camilla Alves and Coco Rocha
Enjoying Rebecca Minkoff's outdoor presentation.
Olivia chose a maroon palette for the Tibi show, with an off-shoulder peplum top and faux suede maxi skirt - both by the designer.
In a flowing red dress and Lacoste L.12.12 trainers at Tibi.
Kanye West and Kim Kardashian
Kylie Jenner and Kendall Jenner
In a dazzling sequin lemon dress by Gucci.
Is not giving up on the cutaway trend in Julien Macdonald.
Reaching for the stars in a plunging spaghetti strap dress at the Harper's bash.
In a '90s style cutaway dress at the Daily Front Row Fashion Media Awards.
Kaia Gerber and Cindy Crawford
Mother and daughter both go for sleek black dresses and almost identical strappy heels at the Daily Front Row Fashion Media Awards.
The 15-year-old won the breakthrough model award.
In a statement red button down dress at the Daily Front Row awards.
Adriana Lima and Katie Grand
Flexing their muscles in matching outfits at the awards bash.
In Tommy Hilfiger at Friday's show.
Also decked out in Tommy Hilfiger for the TH frow.
Kylie Jenner, Tyga
Kylie goes strapless at the Nylon Rebel Fashion Party.
Going boho at the Desigual show.
Shoulder robe and sparkle at the Maybelline party.
Winning a tricky outfit game at Rosetta Getty’s Spring 2017 Collection Celebration.
Is that a '90s dog tag necklace we spy?
The catwalk legend is teaming it with a peplum jacket at the Brock Collection.
Mary J Blige
Working a structural silhouette at Saks' downtown store opening.
Is all about the pockets at Marissa Webb.
Alexa Chung and Kitty Cash
Showing some shoulder at Adam Selman.
Alexa Chung and Leigh Lezark
Attracting a second row photobomber into their selfie at Noon By Noor.
Ina dreamy sparkle jumpsuit at the Jimmy Choo 20th anniversary party.
A one-sleeve wonder at the Jimmy Choo party.
Is statuesque in a sheer tasselled LBD at the Jimmy Choo bash.
Sporting another unusual little black dress - topped off with an elegant top knot.
In a signature suit, mesh top, blue turban, and of course, no make-up.
Stealing the show at Tom Ford in one of the designer's own creations.
Revisits '80s-style puff sleeves with a surprising element of success at Tom Ford.
Shimmering at Tom Ford.
Giving floral a good name at Thakoon.
Ramping up the '70s vibe with lid-to-brow purple eyeshadow at Creatures of Comfort.
Mixing and matching her stripes for a laid-back surfer look at Creatures of Comfort.
Images: Rex, Getty. Gif via Giphy