There may not be a group on tour right now with a more devoted following than Phish. And they’re all about to get introduced to a Philly favorite: Federal Donuts.

The psychedelic jam band sells more concert tickets than One Direction, has fans who travel farther than those of Garth Brooks and regularly fills stadiums with upwards of 75,000 people. That’s what will happen in New York City over the next couple of weeks. The group lands at Madison Square Garden tonight for a 13-day residency dubbed “The Baker’s Dozen.”

In keeping with the theme, Phish will give away a different flavor of Federal Donuts each night to ticket-holders as they walk through the door.

Great news for the lucky early arrivals who’ll get to score a delicious snack, but also killer brand exposure for the CookNSolo fast-casual. The band is broadcasting the giveaway on social media, which means not only do the several hundred thousand expected to attend this concert series now know about the Philadelphia-grown bakery, so does everyone else who follows them online. (That’s 690,000 on Facebook, 153,000 on Twitter and 127,000 on Instagram, if you’re counting.)

How’d this come about? FedNuts has done special Phish-inspired flavors before, usually when the tour comes through Philadelphia. For example, there was one called Fluffhead, after the song, with a swash of marshmallow glaze and chocolate “pill” sprinkles.

So this time around, members of the troupe remembered enjoying those treats — they received special deliveries backstage — and thought they’d be the perfect tie-in with the concert series title.

The inaugural Baker’s Dozen flavor is coconut: A Federal Donut fancy entirely coated in coconut glaze and topped with toasted coconut. Stay tuned to see what else Phish fans will be treated to throughout the week.

Danya Henninger is director and editor of Billy Penn at WHYY, where she oversees the team, all editorial decisions, and all revenue generation, including the membership program. She is a former food and...