Lollapalooza marking 25th anniversary by adding 4th day to festival

America’s largest rock music festival is getting even bigger. Mind you, this is the 25th anniversary of touring festival that launched the Lollapalooza brand.

As proof of that growth, Lollapalooza ticket prices spiked a full 39.6% in 2014, according to Forbes, as a number of big-name musicians joined the lineup. The tour ran from 1991-1997 and hit the road once more in 2003 before the current standalone event at Chicago’s Grant Park began in 2005. Lollapalooza, the annual event held in Chicago’s Grant Park, announced Thursday that next year it will expand to a four-day fest in honor of its 25th anniversary. We’ll happily take more acts with a Thursday start over that scenario. C3 Presents, the promoters behind Lollapalooza, said that this was for both the 25th anniversary and because so many bands wanted to play the festival. Those numbers will grow proportionately this year because of the additional day.

Three day general admission tickets will cost $335 and one-day tickets will cost $120 per day, an uptick from last year’s price of $275 for a three day pass. “It’s going to be a fantastic party!” Its other large-scale competitors, such as Austin City Limits and Coachella, have expanded to two weekends of three-day festivals. Tickets go on sale spring 2016. Also, Lollapalooza reportedly hasn’t cleared this extra day with Chicago for any years beyond 2016, so this four-day thing might only happen once.