The first event will be held at the arena Thursday evening at around 6 p.m., with a guest list of about 100 people, sources familiar with the plans told ABC News earlier this week.
Details about the event have been kept under wraps.
On Friday, a second event will take place at the arena, starting around 4 p.m. with a cocktail hour, according to the sources. One thousand people are expected to be in attendance, the sources said, and the event isn't scheduled to end until 4 a.m. Saturday morning.
The sources said both events will have a strict no-phone policy for everyone inside the venue, including guests, vendors and security personnel.
Outside of the venue, streets will be shut down. The sources said an event company has obtained permits to close portions of West 31st Street and West 33rd Street for the duration of the events. Streets will also be closed to both vehicles and pedestrians, according to the sources.
For now, 7th and 8th Avenues are expected to remain open to pedestrians and traffic, they added.
Those hoping to get a glimpse of attendees arriving at this week's events might be out of luck: the sources explained that tents and canopies will be set up to prevent the public from seeing those entering and exiting the venue.
Multiple trucks were seen outside the arena earlier this week, leading up to the events, with workers loading in equipment with boxes labeled "Garden Party." Workers were also spotted rolling out a red carpet.
Representatives for Swift and Kelce have not confirmed any details about the events.
Swift and Kelce have been linked since 2023, when Kelce, a tight end for the Kansas City Chiefs, attended one of Swift's Eras Tour shows at Arrowhead Stadium in Kansas City, Missouri, and tried to give Swift a friendship bracelet with his number on it.
The "Love Story" singer attended her first Chiefs game in September 2023 and attended Super Bowl LVIII several months later to support Kelce as his team beat the San Francisco 49ers.
The duo appeared to make their relationship Instagram official on July 24, 2025, when Kelce shared photos of the two spending time together in the NFL offseason.
The pair shared news of their engagement on Aug. 26, 2025, in an Instagram post captioned, "Your English Teacher and your gym teacher are getting married ."