Timothée Chalamet, Alicia Keys, more

Celebrity fans went all-in on orange and blue for Knicks Parade day.

Thursday’s ticker-tape celebration through Lower Manhattan drew the team’s longtime A-list faithful — and they came dressed for the occasion, in everything from custom merch to designer bags.

Mariska Hargitay paired bright orange pants with a “Brilliant Thing #11 The Knicks” tee, a nod to her Broadway show “Every Brilliant Thing,” while her son turned up in a custom “Marknicksa Hargitay” shirt in orange and blue. Martha Stewart joined the pun parade in a “Knick of Time” tee, both taking cues, of course, from Taylor Swift.

The high-fashion crowd showed up, too. Timothée Chalamet kept his Chrome Hearts streak alive in an orange hoodie by the LA brand, while Teyana Taylor topped a logo-printed white jumpsuit with a vivid orange wig. She also shared a snap of her parade arm candy: a $35,000 Hermès Birkin printed with bright blue and rust orange graphic details.

New York City’s first lady Rama Duwaji repped the home team in a custom Miss Claire Sullivan one-shoulder dress crafted from bootleg NBA Finals tees.

Finals MVP Jalen Brunson’s daughter Jordyn James had perhaps the cutest outfit of the day: a “My Dad’s The MVP, Hallelujah” tank and pink baby headphones. Mom Ali Brunson kept it simple in a Knicks #11 tank top as she held the tot atop the family float.

Jordyn Woods, fiancée of Knicks center Karl-Anthony Towns, brought back the accessory of the playoffs: her orange ostrich Tux Clutch Mini from her brand Woods by Jordyn, the so-called “lucky bag” she’s carried throughout the team’s winning streak. She paired it with Towns’ #32 jersey, crisp white jeans and a custom diamond Knicks pendant from Alex Moss.

Mayor Zohran Mamdani got in on the good juju, posing with the bag mid-parade.

Mary J. Blige went the luxe route in a white leather romper personalized with her initials and Knicks championship patches, accessorized with diamond chains, while Lindsay Lohan joined from afar, holding up a custom “Lohan 86” piece on Instagram.

The closer came courtesy of Alicia Keys, who took the City Hall stage in a black leather Pelle Pelle jacket and leather pants to perform “Empire State of Mind.”