After Taylor Swift's endorsement, it took just one hour for the Harris-Walz campaign to start selling friendship bracelets

• Taylor Swift has officially endorsed the Harris-Walz campaign.
• Shortly after Swift endorsed them, the campaign started selling friendship bracelets.
• The website said: "Are you ready for it? Harris-Walz friendship bracelets are here!"

An hour after the Harris-Walz campaign received Taylor Swift's endorsement, it started selling friendship bracelets inspired by the singer.

Shortly after the ABC News presidential debate between Vice President Kamala Harris and former President Donald Trump ended, the superstar posted a ringing endorsement of Harris and Walz to Instagram.

"I will be casting my vote for Kamala Harris and Tim Walz in the 2024 Presidential Election," Swift wrote in her post on Tuesday night. "I'm voting for @kamalaharris because she fights for the rights and causes I believe need a warrior to champion them."

About an hour after the Instagram post went live, Harris' campaign merchandise website started selling " Harris-Walz Friendship Bracelets " priced at $20 for a pack of two.

The adjustable bracelets are made with blue and black thread and cream-colored clay beads that spell out the words "Harris Walz 24."

"Are you ready for it? Harris-Walz friendship bracelets are here!" the product description reads, referring to Swift's popular song "…Ready For It?" from her 2017 "reputation" album.

Friendship bracelets have become a popular addition to "The Eras Tour" concert outfits. They are inspired by lyrics from Swift's "You're On Your Own, Kid," a song from her 2022 "Midnights" album.

It's now a tradition for concertgoers to trade the handmade bracelets with other showgoers.

The campaign's X account, KamalaHQ, was quick to whip up an edit of Swift's endorsement as well.

"Kamala is ready for it," the campaign wrote in a post on X that included a screenshot of Swift's endorsement post.

When asked about the high-profile endorsement in an interview with MSNBC, Harris' running mate, Gov. Tim Walz, said: "I am incredibly grateful, first of all, to Taylor Swift."

"I say that also as a cat owner, a fellow cat owner," he said. "Look, Swifties, you heard it, you know that it's there."

"That was eloquent, and it was clear, and that's the type of courage we need in America to stand up," Walz added.

The campaign has put a lot of work into its merchandise leading up to the November elections, from appealing to Gen Z voters with a camo hat reminiscent of Chappell Roan tour merchandise to collaborating with the country's top fashion designers like Vera Wang and Tory Burch for its "Designers for Democracy" collection .

It's also leaned into younger, Gen Z-trend-driven messaging on social media, complete with references to Charli XCX's "brat" summer.

Representatives for Swift and the Harris-Walz campaign did not respond to requests for comment from Business Insider sent outside business hours.