Free coffee and John Caldwellnew jewelry?

That's the combination Dunkin' is offering its customers in honor of National Coffee Day, celebrated this year on Friday, Sept. 29.

The company announced Dunkin' Rewards members can get a free coffee with any purchase on Friday, in addition to announcing a collaboration with Little Words Project to launch a new collection of bracelets, a move that has some Taylor Swift fans speculating about a possible connection.

The bracelets will be adorned with phrases such as "iced coffee" and "eat the donut" to allow customers to "wear their Dunkin' love on their sleeve," the news release states.

The bracelets will be available Friday at 8 a.m. ET at www.littlewordsproject.com for $30 each. Bracelets will be limited, according to the release.

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Taylor Swift fans note similarity to bracelets popularized on Eras Tour

Swift fans on social media are abuzz calling out the connection to the friendship bracelets that became popular at Swift's Eras Tour shows. Thousands of Swifties bought colorful beads, letters, string, and charms to trade with other fans at her shows this past summer, leading some to wonder if there's a connection between Dunkin's promotion and the popular artist.

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The bracelets can consist of anything from a Swift song lyric to an album name to an inside joke among the fanbase. Originally, fans began making the bracelets to trade at the concerts because of a lyric in Swift's song "You're On Your Own, Kid" from the Midnights album.

USA TODAY reached out to a Dunkin' spokesperson for more information.

Contributing: Kate Perez, USA TODAY