Firefly Music Festival sign

As January was coming to a close, there was still no official news about who would perform at the Firefly Music Festival, which returns to The Woodlands of Dover International Speedway in June.

Mystery quickly gave way to excitement just a few days after the Grammys. Multi-Grammy winner Billie Eilish, Grammy nominee Maggie Rogers of Maryland's Eastern Shore, Rage Against the Machine, Halsey, David Lee Roth, Blink-182, The Struts andy many others will be taking a total of six stages at the east coast's largest music and camping festival.

Assembling the line-up is like a big jigsaw puzzle. Organizers have to find out who is touring, whether they are performing close by (but not too close) and when, and whether artists are committed to other festivals.

"I can tell you that we start out, throw a lot of things on a board and kind of dream up a lineup," Firefly Music Festival Vice President of Programming Sean O'Connell said. "This one ended up pretty close to what we dreamed initially, which is not always the case."

"We're absolutely thrilled, and we're big fans. I think that's the biggest thing for us. We want to curate a lineup as fans,for fans," O'Connell added.

Before the official announcement, buzz was building about having a female headliner. This year, Billie Eilish and Halsey are among the top acts of the multi-day festival. 

"This year, everything lined up really well," O'Connell said. "We're really proud that that could happen."

Firefly takes place June 18th to June 21st. Passes have been on sale, but prices go up this Monday.

"Demand is really, really strong this year," O'Connell said. "We're pretty excited about the reaction to the lineup."