In.Out.Sider Festival 2026
An underground, homegrown post-punk night.
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In.Out.Sider Festival comes to La Vallée featuring a live performance by Leeds post-punk band Ultimate Thunder. Tickets on Mood.
In.Out.Sider Festival 2026 returns to La Vallée in Brussels, featuring a live performance by Leeds post-punk band Ultimate Thunder.
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Common questions
When and where does In.Out.Sider Festival take place?+
In.Out.Sider Festival takes place on October 9, 2026 at LaVallée, located at Rue Adolphe Lavallée 39, 1080 Bruxelles.
Who is performing at In.Out.Sider Festival?+
The festival features a live performance by Leeds post-punk band Ultimate Thunder.
How do I get tickets for In.Out.Sider Festival?+
Tickets on Mood.