Scheduled to take place March 23 through 25 at Tempe Beach Park, the event is set to coincide with the annual Cactus League spring training games in the Valley.
Innings will feature three stages and 36 bands over the three days.
Country wunderkind Chris Stapleton, the foot stompin' Avett Brothers, and Palm Springs rockers Queens of the Stone Age round out the top billing. QOTSA is one of two Josh Homme projects on the list, which also includes his band Eagles of Death Metal.
The rest of the lineup is a who's who of (mostly) alternative darlings, including Young the Giant, The Head and the Heart, Dispatch, Counting Crows, The Decemberists, and Cold War Kids.
There's even a local music presence, with Tempe legends Gin Blossoms on the bill.
Other artists on the bill include Sylvan Esso, Phosphorescent, Craig Finn & The Uptown Controller, Luke Combs, Citizen Cope, Bishop Briggs, and Local Natives. See the full roster below.
General admission tickets will go on sale at 10 a.m. on Friday, October 27, via InningsFestival.com.
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Tier-one pricing will cost $159 plus fees for the weekend, and prices will go up closer to the fest.
VIP tickets will be available for $499 + fees and Platinum packages for $999 plus fees that'll get you perks like an open bar and catered meals.
The festival also promises one-day passes coming soon. But pricing has yet to be announced.
Stay tuned for more details.