STREET artists have been adorning the back alleys of Lismore for three years now as part of a council-sponsored promotion.
This Saturday they'll be at it again with new murals being installed over the top of some of the older ones.
"It's not just that we're running out of space, it's truer to the nature of street art," project manager Erin Lewis said.
"It should be a transient, ever-changing thing. The space should change so that people see new things when they come back."
The annual Back Alley Gallery Street Party will feature street artists doing aerosol art demonstrations, as well as live music, yarn bombing, face painting and various other workshops and events.
Curator Nathan Eyres has gathered together a collection of exceptional street artists, both local and visiting, including Basix, Julla, Jeremy Austin, KiKi, Alley Cat, John Kaye, Judy Rhum and Jinx.
"We have some very well-known street artists involved and you don't often see their art in regional towns," Ms Lewis said.
Headlining the musical line-up is Brisbane-based Bull Horn, an eight-piece brass hip hop band, along with Substation, Kazya, Artillionaire, Nastaij, 28: Engine Sound and Waxhead.
Ms Lewis said organisers have tried to make it as diverse and family friendly as possible with market stalls from 12-5pm and events like the yarn bombing and zine making workshops throughout the day.
Lismore City Centre manager Jason Mumford said the Back Alley Gallery was an attraction for visitors, but more importantly it had been transformed for locals to enjoy.