It goes without saying that Savannah will be partying on St. Patrick's Day.

In the mix of green-clad insanity, The Wormhole will be hosting an entire day of free music March 17, aptly titled the Shamrock Jamrock Festival.

Presented by Relentless Promotions, the 12-act, day-long festival features nine local acts and several regional musicians. Doors open at 2 p.m.. Music will begin at 3 p.m. and to the delight of the neighbors, end around 3 a.m.

SCAD product Robert Hall put together Relentless Promotions about two years ago. After his first show was unsuccessful, the group took a break.

But Hall's ambitions are not so easily thwarted.

Relentless presents the entire day, free of charge. The day's music will run the gamut of genres.

Local rockers Broken Glow are in the mix, as well as funk act Xulu Prophet and Oceanman. Chris Sebby, a Savannah singer/songwriter, is on the docket, as well as Tybee Island's Baked Alaska. Playing later is Savannah rap group The Wild Bunch. The hip-hop trio formed in 2010 and in 2013, released "Your Average Mixtape Vol. 1."

"Basically, I was trying to be very diverse," Hall said. "I was trying to pull in as many different crowds as possible. I wanted to give some local bands a chance to say they've played a festival. I tried to give as many local artists as I could a chance to play."

Alongside the live bands, seven DJs will be spinning tunes all day. Hall will don his DJ persona "Relapse" for the party. Hall's friend, Atlanta-based "Krowbar," will be mixing, as well.

Hall's ambition is to use the Shamrock Jamrock Festival to eventually showcase local acts on a national scale and bring more acts to Savannah.

"So far, I've got friends of mine as far as Seattle, Baton Rouge, Detroit and Denver scouting locations for Relentless events," he said. "What I plan to do is book artists from those places here, and basically trade off shows. Give artists here the opportunity to play there."

Relentless Promotions is hoping to schedule several more free events over the next six months. For now, The Wormhole will be a relentless party on the high-holy Irish holiday.