Mountain Grass Unit Headlines Surf Hat at Vail's The Amp

“We try to make it relatable to people but also mean something in our lives, so when we look back at songs that we did a few years ago, they’re very representative of what we were going through personally at that time.”

Jon Allan, guitarist and lead vocalist for British Columbia’s Surf Hat, didn’t just say that to fill airtime. He said it to explain why a band named after a random guy in a Tofino surf hat is playing The Amp in Vail on Thursday.

The headline act is Mountain Grass Unit. They’re an Alabama-based bluegrass outfit that’s suddenly everywhere. They played Telluride Bluegrass. Rolling Stone called them the “surprise show.” Saving Country labeled them “the next big band in bluegrass.” They won the International Bluegrass Music Association’s Momentum Artist of the Year award during IBMA week. They played 100 shows in 2025.

They’re opening for Surf Hat.

It’s a south-meets-north dynamic. You’ve got the intense fingerpicking and four-part harmonies of modern bluegrass colliding with the psych-surf and indie-rock blend of the Canadians. It’s not a bad mix. It’s just a specific one.

Let’s look at the credentials. Mountain Grass Unit released their EP “Runnin’ From Trouble” in 2024. They’re young. They’re loud. They’re improvisational. If you like bluegrass that doesn’t sit still, this is the show. If you prefer your music to sound like it’s coming from a garage in Tofino, you’re in the right place for the opener.

Surf Hat started about four years ago as a trio writing songs in a garage. They added a keyboard player. The sound got layered. Now they’re trying to strip it back. Their style is “cold-water surf rock.” It’s got California surf vibes mixed with British Columbia’s ocean and mountain culture. They aren’t huge surfers. They admit they’re not very good at it. The name came from a silly name search while surfing cold waters.

“We make lots of different kinds of music — sometimes folk, sometimes rock, sometimes just whatever is feeling good that day,” Allan said.

They’re authentic. They put their heart into it. They believe if you believe in it, the audience will too. That’s the theory. The practice is just two bands playing a venue in Vail on a Thursday night.

The Amp is the location. It’s a established spot for live music in the valley. It’s not a stadium. It’s not a festival tent. It’s a club. You pay your cover charge. You drink your beer. You listen to Mountain Grass Unit shred through their bluegrass arrangements while Surf Hat lays down some psychedelic indie-rock grooves.

There’s no hidden tax hike. There’s no new road construction. There’s no zoning dispute. Just music.

Allan noted that their palette has expanded but they’re trying to strip some of that new stuff back down. It’s a creative process. It’s messy. It’s real. The band’s name is an inside joke. The music is serious effort.

If you’re in Vail on Thursday, you have a choice. You can stay home. Or you can go to The Amp. You’ll hear bluegrass from Alabama. You’ll hear surf-rock from Canada. You’ll hear Jon Allan say that they make music that represents what they were going through personally.

That’s the whole story. No fluff. No complex infrastructure projects. Just a band from the north and a band from the south sharing a stage.

The bottom line is simple: It’s a concert. It costs what a concert costs. You get to hear two bands that are currently riding high on critical acclaim and local buzz. Mountain Grass Unit is the headline. Surf Hat is the opener. The Amp is the place. Thursday is the day.