Taylor Swift attended Patrick Mahomes’ 30th birthday celebration Monday evening at 1587 Prime, the Kansas City steakhouse co-owned by Chiefs players, wearing a plaid Simkhai set that sold out almost immediately.
Photographs from the event show the singer in Simkhai’s suiting-inspired Poppy vest and Payton wrap mini skirt, paired with burgundy Gucci platform heels and a Chanel pendant necklace. Swift was joined by her fiancé, Travis Kelce, who remained in his Thom Browne shorts, and by Brittany Mahomes and other guests. Country singer Kane Brown and his wife, Katelyn Brown, posted photos and a video of Mahomes blowing out a sparkler-topped cake as attendees cheered.
The Simkhai pieces — described by sellers as a suiting-inspired vest and a wrap mini skirt — were reported to have sold out shortly after images circulated. Observers noted the outfit echoed 1990s schoolgirl styling, drawing comparisons to the film "Clueless." Swift has leaned on tartan and plaid as recurring motifs in recent public appearances.
Since she began dating Kelce in 2023, Swift has worn tartan and checks at several Arrowhead Stadium appearances and at other events. Notable examples include a matching Vivienne Westwood corset and mini skirt, a Versace skirt suit, and a plaid pleated mini paired with a gray Chiefs sweatshirt. She also wore a Dior tartan look at the 2024 MTV Video Music Awards and a head-to-toe checked ensemble on the Sundance red carpet in 2020.
The singer’s sporting-season wardrobe has become a patterned through-line amid her public appearances with Kelce. Her presence at the birthday celebration came a day after the Chiefs’ loss to the Philadelphia Eagles, but photos from the event showed a celebratory atmosphere.
Kane Brown’s social posts from the party included images of guests gathered around Mahomes and captured the moment the birthday cake was lit. The gathering took place at night in the restaurant co-owned by Chiefs players and drew friends and teammates for the milestone 30th celebration.
Swift’s Simkhai vest and skirt combination continued a broader trend of high-fashion reinterpretations of classic plaid and tartan looks in the pop star’s recent wardrobe choices. Retail and fashion observers noted rapid sell-through on the Simkhai pieces following the event.
The appearance provides another example of how celebrity outings can influence immediate retail demand for designers worn by high-profile figures. Swift’s ongoing use of plaid across public events has intersected with both red carpet moments and sideline fashion during NFL season, reinforcing the pattern as a recurring element of her public style.
No representatives for Swift, Kelce or Mahomes immediately commented on the sold-out report or the details of the birthday celebration.