11 - 28TH OF SEPTEMBER 2025 - Brussels - Lille - PAris
An Itinerant and Inclusive Edition
From concerts and performances to exhibitions, workshops and artistic residencies, In.Out.Sider 2025 offers a bold and eclectic program at the crossroads of outsider art, experimental creation and social engagement. The festival takes over LaVallée, the Urban Boat barge, and several partner venues in Brussels, Lille and Paris, with a strong commitment to inclusion for artists with and without disabilities.
IN BRUSSELS
Collaborative creations & participatory residencies
A monumental mural will be created on the Urban Boat by artists from the Sésame and Créahmbxl centers, in collaboration with Jérôme Meynen. Video workshops by RHIZOM, outsider art exhibitions, and poetic kinetic installations by Pierre Gordeeff are also featured. Volunteers with disabilities, trained in key festival roles, will actively take part in all aspects of the event.
Thursday, September 11 – Urban Boat (Quai des Péniches)
Mural unveiling
Génération Intime (live)
Run – Emilie Lafranceschina (performance)
Why The Eye (live)
DJ Pierre (DJ set)
Friday, September 12 – LaVallée
Screening & talk: L’Annonce
Klaus Beyer (live + artist talk)
Maya Dhondt (live)
Jim E Brown (live)
Pö (live)
Le Soleil et l’Acier (live)
Camposs (live)
Donia (DJ set)
Saturday, September 13 – LaVallée
Family-friendly afternoon: circus workshop, Casquette dans la quiche (children’s concert)
NIGHT
DREUN XL (live)
Dean Rodney Jr & The Cowboys (live)
Radio Hito (live)
Benefits (live)
Nova Materia (live)
Late-night sets: La Bande à Bader, Margaux59000, Ojoo
FROM LILLE TO PARIS
Cross-residency on board the Urban Boat (September 21–25)
Belgian and German artists meet on board the barge for a collaborative residency. Brainrot Cowboy, Schrunzel, Thomas Mahmoud and inclusive journalists from Les Contistadors will create and document the experience.
Friday, September 20 – Urban Boat in Lille (Sustain Festival)
Live performances by Brainrot Cowboy, Schrunzel, Thomas Mahmoud
Thursday, September 26 – Centre Wallonie-Bruxelles, Paris
Roundtable by Fluctuations
Short film screenings
Frédéric Prieur (live)
Artistic residency showcase : Brainrot Cowboy, Schrunzel, Thomas Mahmoud
Night Metamorphosis installation by Mika Oki
Saturday, September 27 – Canal Saint-Martin
Floating concert series along the canal with Adamant Sound System and guest artists
Sunday, September 28 – Open air event in Pantin
Miskin Télé (interactive musical game)
Marie Klock (live)
Wanino (live)
DJ set: Christina Monet B2B Étienne Blanchot
A Festival Beyond Categories
In.Out.Sider 2025 celebrates the richness of difference, the vibrancy of alternative voices and the creative spark of artists working outside conventional frameworks. It’s an open, collective and joyful journey through experimental music, outsider art, and radical inclusion.