Oversensitive types of the world, take heart: The hitmaking pop trio AJR has your back.

Brothers Jack, Adam and Ryan Met have long made a trademark of matching upbeat tunes with vulnerable lyrics. Their latest single “Betty,” which they premiered on the Jimmy Kimmel show recently is a prime example. It’s an improbably catchy tune about getting cold feet over a marriage, and the soul-searching that follows.

“It was from conversations that Ryan and I had with each other and in therapy about this fear of commitment, the fear of forever,” Jack Met explained in an interview last week. “That was definitely something we were dealing with — in everything from relationships to a career to a friendship. The idea is that it’s not you, it’s me — that you need to grow up and face the idea of forever eventually.”

Their most recent album, “The Maybe Man” came out of an even tougher situation, the loss of their father. “That was the most difficult writing process we’ve ever been through. Writing is supposed to be a fun escape — ‘Okay, we have these problems but let’s come up with a catchy hook!’ But when you’re writing about loss, that’s a scary thing to do because your brain wants to go away from it. But the writing does help you cope, so that was our toughest but most rewarding album, and I think it’s a lot of fans’ favorite.”

Writing less meaningful songs never worked out too well, he says. “When we had our first big song, which was ‘I’m Ready,’ it was more of a party song and the lyrical content wasn’t very deep. After that we tried to tour and no one came, nobody seemed interested, and we were surprised. And we said ‘Hold on, we need to sit down and write something that’s true to ourselves’. We were facing a lot of emotional issues so we thought, why not just throw that into the music? And as soon as we did that, fans started flocking to the shows. Music is a form of therapy and it was great to have it resonate with people. You’re not alone if there’s 10,000 people in the room that feel the way you do.”

Among mainstream pop groups, AJR is as DIY as it gets. They write the songs with no outside help, do much of the recording in their home studio, and even make videos at home. “There’s no other way that we could have done it. We started at a very young age, in our parents’ living room, in our boxer shorts at 3 a.m. And it’s honestly all we knew, it’s very personal to just us. I think if we had gotten another writer in the room, it would have been less of us. There’s been moments where many people have told us to bring in co-writers to get a hit, and we fought them. Not that we ever have the confidence we can write the big hit — and I don’t think anyone should, that usually leads to not a hit. But we’re lucky enough to have a few under our belt.”

Jack says the influences go back to another band with three brothers, namely the Beach Boys. “I’d say that’s our main influence because they have such a wide variety of feelings in their music — They can go from ‘Everybody’s gone surfing’ to ‘God only knows what I’d be without you,’ and it’s so easily digestible, there’s some serious emotion there. And that made us think, we want to be that — We want to be able to write whatever we want and not have people get mad at us for changing up our sound.”

He promises an elaborate stage show when AJR plays the Xfinity Center on Aug. 9. “Concerts should really be an experience. When we walk out of a movie that was really great we think, ‘Why can’t a concert be like that, why can’t it have moment after moment?’ So we always keep it in mind. The last tour had more of an emotional narrative, since it came off that album. This is a lot more fun, just a big night of music.”