Cursive frontman Tim Kasher admits the offer for his indie rock act to open for alt-metal band Mastodon caught him off guard. Pop/punk outfit Against Me! is also on the bill for the trek, which begins

Cursive frontman Tim Kasher admits the offer for his indie rock act to open for alt-metal band Mastodon caught him off guard. Pop/punk outfit Against Me! is also on the bill for the trek, which begins tomorrow (May 1) in Los Angeles.

"I questioned it at first and was kind of intimidated," Kasher tells Billboard.com. "Like, why would we play a metal show? But I kind of like the idea of where they're going with it. I met one of the Mastodon members and he was pretty credible and a nice gentleman. That goes a long way for us as far as this business. I guess I based it off, the bands are credible and respectable, so I think they're good people to associate with."

He adds, "Who knows what the crowd will think." And even though Cursive has some pretty heavy material in its back catalog, Kasher says the band won't fill its set list with more aggressive tunes just to kowtow to the Mastodon audience.

In fact, the Omaha native, who recently moved to Southern California, stresses the outfit is still ostensibly touring its 2006 release "Happy Hollow," which found the band railing against fundamentalist religion with a new stylistic approach than on past albums.

"I guess we're just trying to go directionally as different as we can," Kasher says. "I think some of the basic ideas (on 'Happy Hollow') were much more upbeat, something much brighter. I kind of consider our last album, 'The Ugly Organ,' a little downbeat and darker."

During a recent break from Cursive, Kasher was busy working on a new album for his other band the Good Life. "Help Wanted Nights" is due in September via Saddle Creek and will be supported by a fall tour.

As for Cursive, the band finishes touring at the end of May, and fans are already wondering whether the outfit will quickly return to the studio or take one of its frequent hiatuses.

"We chat a lot about where we're going to practice so that seems to suggest that we want to write some songs and stuff," Kasher says. "But yeah, I think we're trying to not do a hiatus this time. I hate to say it because I never really know. I feel like a thousand times I've said one thing and did another. But as of right now, that's what we're shooting for."