Heading into their latest album, 'Vacation Vinny,' experimental Boston indie punksters Grass Is Green sought to expand their melodies and "embrace the noise" at the core of their sound, according to a press release. If those sound like contradictory impulses, they're not incompatible -- at least not on the new single 'Big Dog Tee Shirt Birthday Weekend,' premiering today on Diffuser.

The tune is mangy and elliptical enough to mark this foursome as something unique -- not quite '90s alt-rock or indie, not quite punk -- and yet its catchy enough to hold your attention for the entire 3:30. The band is sure to make lots of new friends in the coming weeks, as they head out with buzzed-about Massachusetts rockers Speedy Ortiz on a DIY tour of the East Coast (dates below).

'Vacation Vinny' lands Jan. 14 on Exploding In Sound Records. Click here to pre-order.

01/03 -- Danbury, CT -- Heirloom Arts Theatre w/ Fins, Vundabar, Speedy Ortiz
01/04 -- Philadelpha, PA -- Golden Tea House w/ Bleeding Rainbow, Ghost Light, Speedy Ortiz
01/05 -- Baltimore, MD -- Floristree w/ Roomrunner, Hive Bent, Speedy Ortiz
01/06 -- Richmond, Va. -- Strange Matter w/ Sundials, Spit Take, Speedy Ortiz
01/07 -- Chapel Hill, N.C. -- Local 506 w/ Blanko Basnet, Speedy Ortiz
01/08 -- Charleston, S.C. -- John Waters Communications Museum w/ Parasitic Male, Southern Femisphere, Speedy Ortiz
01/09 -- Jacksonville, Fla. -- Jack Rabbit's w/ Speedy Ortiz, Memphibians, The Willow Wacks
01/10 -- Tampa, Fla. -- Mojo w/ Speedy Ortiz, Y Los Dos Pistoles, Sweet Divorce
01/11 -- Tallahassee, Fla. -- Office Lounge w/ Ex-Breathers, Speedy Ortiz
01/12 -- Atlanta, Ga. -- Capsule Gallery w/ Gold-Bears, Del Vinnici, Speedy Ortiz
01/13 -- Birmingham, Ala. -- Seasick Records w/ Speedy Ortiz, In Snow
01/14 -- Nashville, Tenn. -- The Stone Fox w/ Gnarwhal, Speedy Ortiz
01/15 -- Asheville, N.C. -- Toy Boat w/ Speedy Ortiz, That's a Thing, Old Flings
01/16 -- Charlottesville, Va. -- Tea Bazaar w/ Sundials, Speedy Ortiz
01/17 -- Washington, D.C. -- The Dougout w/ Two Inch Astronaut, Speedy Ortiz
01/18 -- New Brunswick, N.J. -- Cooler Ranch w/ Neur, Speedy Ortiz
01/25 -- Cambridge, Mass. -- Elks Lodge w/ Ovlov, Krill, Palehound & Trespasser
01/31 -- Brooklyn, N.Y. -- Silent Barn w/ Baked, Radical Dad, Frankie Cosmos, & Povery Hollow
02/06 -- Portsmouth, N.H. -- Red Door
02/21 -- Allston, Mass. -- O'Brien's Pub w/ Alarms & Controls, Horsehands, & Lady Bones