In.out.sider festival

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België
Brussels
In.out.sider festival

Alternative music festival in Brussels with a diverse lineup celebrating raw artistic creativity.

06/09/2026

Chadou, Lou K, François Geslin and Oskar Cappon bring their musical worlds together in a creation born from a unique adventure: three days spent in residence aboard the Urban Boat, travelling along the water and immersed in nature. A collective experience of musical observation and aquatic transmission, where different worlds intersect, nature becomes musical material, and every sound tells a little piece of this timeless escape.

Their compositions are joined by field recordings and texts by Frédéric Deschamps, who captures, in his own way, the impressions, encounters and moments of the journey. Between music, voices, live-recorded sounds and fragments of storytelling, Les ami.e.s de la nature create a free and sensitive sonic travel diary, where every sound becomes part of the journey.

Live on Friday 09.10 at
Tickets from 10€, link in bio
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Festival In.out.sider
Brussels | 08.10–10.10

01/09/2026

BADABOUM is an all-star female trio affiliated with the infamous underworld of La Grande Triple Alliance Internationale de l’Est, featuring Armelle (The Dreams, Heimat, Le Renard), Carine (Krinator, Headwar, Les morts vont bien) and Solène (Dudu Geva, Avenir, etc). Together, they play post-punk reminiscent of KLEENEX / LILIPUT or MALARIA!, with generous doses of reverb, electronic organ and good vibes.

On stage, they take turns screaming, stomping and singing in an indecipherable Italian, a fake German and acceptable French. BADABOUM will bring you as much joy as chaos and terror.

Live on Friday 09.10 at
Tickets from 10€, link in bio
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Festival In.out.sider
Brussels | 08.10–10.10

28/08/2026

From the twisted genius behind Infecticide comes DJ GLUTRON - a DJ set from another dimension.

« Humans of planet Earth.

If this message has reached you, it is already too late.
Your ears have been selected.
You must now take part in a vibrational recalibration session.

The entity known as DJ GLUTRON will broadcast a succession of unauthorized musical objects. Some will cause involuntary movements. Others will temporarily alter your perception of time, rhythm, or gravity.

Any resemblance to a party is purely accidental.

For your safety, do not miss DJ GLUTRON. »

👽

DJ set on Saturday 10.10 at
Tickets from 10€, link in bio
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Festival In.out.sider
Brussels | 08.10–10.10

25/08/2026

Wodiwo’s music fuses raw energy with fragile melancholy, creating a sound that feels both intimate and collective. Using a loop station, they build songs layer by layer: Odile’s grounding basslines and emotive voice form the core, while Oskar’s dynamic percussion and atypical vocalisation bring pulse and contrast. The result is an unpolished yet powerful collage, minimalist in form, but rich in texture and deeply expressive.

Live on Friday 09.10 at
Tickets from 10€, link in bio
–
Festival In.out.sider
Brussels | 08.10–10.10

18/08/2026

As a wise man once told them: DJs are like cooks. No matter how talented a cook is, if they only have sh*tty ingredients, the dish will be terrible. On the other hand, even a mediocre cook can make a good dish if the ingredients are high-quality. LaCloture belongs to the latter category.

They don’t really know where they’re going, but they’ll happily take you there, ending the festival in a glorious chaos.

Live on Saturday 10.10 at
Tickets from 10€, link in bio
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Festival In.out.sider
Brussels | 08.10–10.10

06/08/2026

Third Wave is a slightly mad electro duo blending synthesizers, analog machines, and drum machines like no one else.

On one side is Edgard Nerise, a multi-talented pianist (also a member of Mono Siren), who turns every key into a sonic explosion. On the other is Singularity A.I., aka DJ Lovepills, king of Brussels nightlife, commanding an arsenal of drum machines, pedals, and electronic gear. Together, they create a world where melody meets beats -sometimes serious, often a bit crazy, but always surprising.

Get ready to dance, smile, and maybe even lose track of time…

Live on Saturday 10.10 at
Tickets from 10€, link in bio
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Festival In.out.sider
Brussels | 08.10–10.10

29/07/2026

DJ Babou Alice and Mikamayonnaise are multidisciplinary artists who treat music as a playground. Blending processed vocals, electronic melodies, bass, and samples from Korean TV series, they create DIY musical collages revolving around love, kawaii culture, and the universal struggle of Monday mornings.

Live on Friday 09.10 at
Tickets from 10€, link in bio

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Festival In.out.sider
Brussels | 08.10–10.10

21/07/2026

Splitter Splatter is an experimental performance act from Amsterdam. The group is known for its unique blend of instrumental music, visual arts, and theatrical performances, often incorporating puppetry and collaborative projects with other artists and collectives.

Splitter Splatter describes itself as a “fantastical pop act” and has been involved in various performances at living rooms, art galleries, music festivals, parades etc. across the Netherlands and beyond. Focus is on taking the audience into a colourful unique hand-crafted world, with sculptures, set design, knitted costumes and music.

Live on Saturday 10.10 at
Tickets from 10€, link in bio
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Festival In.out.sider
Brussels | 08.10–10.10

16/07/2026

Through her compositions, Oonagh Haines sketches nocturnal zones where contemporary
electronic music, underground aesthetics and deconstructed pop collide.
A logic of doubling runs throughout: the voice slips into altered states, shadowing itself, while
avant-garde techno brushes against a muted sentimentalism. The delivery remains cool,
almost withdrawn. The delivery remains cool, almost distant, at times recalling the early work
of Anika.
Not Not Pretending is her first album. Released by moli del tro on 24 April 2026.
Styles: electronic, pop, synth wave, experimental , techno

Friday 09.10 at LaVallée
Tickets from 10€, link in bio

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Festival In.out.sider
Brussels | 08.10–10.10

13/07/2026

MÜ is an outsider art collective bringing together disabled and non-disabled artists. Together, they create a dreamlike sonic universe where texts, spoken word, sounds, cries and original electronic compositions merge into a unique artistic language.

Their work grows out of improvisation. These raw moments become the starting point for collaborative creations, shaped with the support of artistic facilitators into sonic narratives, songs and sound poems that celebrate experimentation, emotion and spontaneity.

On stage, MÜ offers an immersive experience at the crossroads of electronic music, poetry and performance, inviting audiences into a world where artistic expression transcends genres, conventions and expectations.

Live on Saturday 10.10 at LaVallée
Tickets from 10€, link in bio

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Festival In.out.sider
Brussels | 08.10–10.10

Adresse

Rue Adolphe Lavallée 39
Brussels
1080

Téléphone

+33778216724

Site Web

https://www.instagram.com/in.out.sider_festival/

Notifications

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