"We have one day off," Christian Karrlson, one half of dance-electro duo Galantis tells us as they get ready to embark on their first headlining tour of the U.S.

"Well, not really," his partner Linus Eklow interjects. “We're doing rehearsals.”

The fact that the Swedish pair have such tight schedules should come as no surprise. Galantis has a Grammy nod in the Best Dance Recording category for their monster-sized single “Runaway (U&I)," while a different version of the same song earned American DJ-producer Kaskade a nomination in the Best Remixed Recording (Non-Classical) category. In their "off" time, they're on other projects: Karlsson, as half of Bloodshy & Avant, best known as the production/pop trio Miike Snow; while Eklow has a cult-following of his own as Style of Eye, having touched the work of Zedd, Lily Allen and, of course, Icona Pop's "I Love It."

RELATED: Highly Suspect: The Grammy underdog you should know

With a reputation for incredible live shows, the follow-up in the infectiously frivolous single “Peanut Butter Jelly,” Galantis are on course to take their music beyond the festival and nightclub circuit and deep into the mainstream.

This is your first American headlining tour, tell me what you've got planned.

Eklow:  We're finally on a bus, which is great because you can bring more stuff. We try to bring as much gear as we like from the studio and incorporate it into the show and bring it to life on stage. We try to be creative [and] try to have as many possibilities for being spontaneous on stage.

Has it been a challenge to upscale your show to headliner status?

Karrlson: No, we kind of started here and had to scale down, because in this genre people aren't prepared for us to come with a lot of stuff. It's been a lot of festivals where we've had to scale down just to be fit it all in. When you get to do headliner stuff is when it's open and you get to do whatever [you want].

RELATED: Alex Newell wants you to know 'This Ain't Over'

What is the wildest thing you've seen on tour?

Karrlson: Every night is a pretty wild. We have a wild crowd, I've got to say. We've got amazing people showing up to the shows and the energy is amazing. That is the fuel for us, that's why we bring so much energy to the stage, because the audience is going crazy.

Eklow: The die hard fans that come dressed up as seafoxes are pretty wild. They spend a lot of time making those costumes!

Karrlson: I think we've got a certain type of people that are very devoted to us. And it makes us feel great and gets us stoked to do better music and do better shows. It's exciting to us. And it's exciting time in general in this type of music, a big change is happening right now.

If you go:

Boston: Feb. 12, 7 p.m. Royale, 279 Tremont St, (617) 338-7699  

Philadelphia: Feb. 14, 7 p.m., Sound Garden Hall, 520 N Columbus Blvd, (847) 268-8331