Ô Mauvais Buisson Festival
Open-air contemporary music festival in Maumusson, near Ancenis
About Ô Mauvais Buisson
Ô Mauvais Buisson is a contemporary music festival organized annually in the open air in Maumusson, in Loire-Atlantique, on the esplanade of the Fontaine aux Merles lake. Created in 2006 by the association La Maumission, a group of young engaged Maumusson residents, the festival will celebrate its 20th edition in 2026. True to its festive, popular, and accessible spirit, it mixes national headliners and discoveries in an eclectic program ranging from rock to reggae, from French chanson to electro, including punk and ska. Supported by over 250 intergenerational volunteers, Ô Mauvais Buisson welcomes around 3,400 festival-goers each year in a friendly and warm atmosphere, with free camping and on-site catering.
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Twenty years of music and sharing in Maumusson
Founded in 2006 by the association La Maumission, the Ô Mauvais Buisson festival was born from the desire of a group of young people from Maumusson to create a unifying musical event in this rural town in Loire-Atlantique, located between Nantes and Angers, in the Pays d'Ancenis. What began as a modest local initiative has transformed into a must-attend event for contemporary music in rural areas, attracting around 3,400 festival-goers each year to the esplanade of the plan d'eau de la Fontaine aux Merles.
An eclectic and accessible program
The strength of Ô Mauvais Buisson lies in its ability to offer a varied and unifying program, mixing renowned artists and discoveries. Over its editions, the festival has hosted diverse names such as Les Wampas, Ultra Vomit, Tagada Jones, La Rue Kétanou, Sinsemilia, Danakil, Youssoupha, Les Fatals Picards, Hilight Tribe, Manau, Yanis Odua, 47 Ter, Elephanz, Merzhin, Strollad, and Les Ramoneurs de Menhirs. This mix of genres — rock, punk, reggae, French chanson, electro, hip-hop, Celtic music — reflects the festival's open and popular spirit.
A human-sized festival driven by volunteers
Ô Mauvais Buisson is a 100% non-profit and volunteer-run festival. Over 250 volunteers from Maumusson and surrounding towns mobilize each year to bring the event to life, from site preparation to catering, security, and reception. This intergenerational and community dimension gives the festival a warm atmosphere that sets it apart from larger events. The festival uses an internal currency, the "buisson" (1 buisson = €1.25), and distributes reusable Ecocup glasses to each festival-goer.
A rural setting by the water
The festival takes place on the esplanade of the Fontaine aux Merles, an open-air space located by the communal lake of Maumusson, in a green and bucolic setting. The site offers free camping and parking for festival-goers with tickets. Catering and bar areas complete the on-site offerings. A team of first-aiders from the Croix-Blanche and the association Alcool Assistance ensure health and safety prevention throughout the event.
Ô Mauvais Buisson — edition 2026
20th anniversary edition of the Ô Mauvais Buisson festival in Maumusson. Two days of open-air contemporary music on May 29th and 30th, 2026, with Petit Biscuit, The Rumjacks, Les Tambours du Bronx « Métal Show », Didier Super, La Route des Airs, Golden Parachute, Cold Capsule, and many others.
20th edition: Petit Biscuit and The Rumjacks for the anniversary
The Ô Mauvais Buisson festival celebrates its 20th anniversary on May 29th and 30th, 2026, on the esplanade of the Fontaine aux Merles in Maumusson. For this historic edition, the festival will exceptionally extend to two days, reflecting the renewed ambition of the La Maumission association.
The evening of Friday, May 29th will feature the explosive celtic punk of The Rumjacks, accompanied by Bardix le Gaulois, Les P'tits Fils de Jeannine, Make Over, and Cold Capsule. Saturday, May 30th promises to be just as intense with Petit Biscuit, a key figure in the French electro scene with a melodic and sensitive universe, Les Tambours du Bronx and their spectacular "Métal Show" of industrial percussion, Didier Super and Discount for a show as funny as it is quirky, La Route des Airs, Golden Parachute, Les Diggers, and Stick 7.
This anniversary edition confirms Ô Mauvais Buisson's place as a major event for contemporary music in rural areas, true to its festive, popular, and accessible spirit, where national headliners and more underground projects coexist.
Programme Ô Mauvais Buisson 2026
May 29th, 2026
- The Rumjacks
- Bardix le Gaulois
- Les P'tits Fils de Jeannine
- Make Over
- Cold Capsule
May 30th, 2026
- Petit Biscuit
- Les Tambours du Bronx « Métal Show »
- Didier Super and Discount
- La Route des Airs
- Golden Parachute
- Les Diggers
- Stick 7
Highlights Ô Mauvais Buisson 2026
- 20th anniversary edition — first time over two days
- Petit Biscuit, electro headliner on Saturday
- The Rumjacks and their explosive celtic punk on Friday
- Les Tambours du Bronx « Métal Show » and Didier Super
- La Route des Airs, Golden Parachute, and Cold Capsule
- Free camping and parking on site
- Over 250 volunteers mobilized for the anniversary
Prices Ô Mauvais Buisson 2026
Practical information — Ô Mauvais Buisson
Practical Information
Access to the site
The festival takes place on the esplanade de la Fontaine aux Merles in Maumusson (Vallons de l'Erdre), in Loire-Atlantique, between Nantes and Angers.
- By car: From Nantes, take the direction of Ancenis via the N23 then follow signs for Maumusson (approx. 50 minutes). Free parking on site.
- From Angers: Direction Ancenis then Maumusson (approx. 45 minutes).
Camping
Camping is free and accessible to ticket holders. Camping opens on Friday at noon. Breathalyzer tests are conducted at the parking lot exit; drivers exceeding the legal limit are invited to hand over their keys or stay on site.
Ticketing
Tickets are available online on the PlaceMinute platform at omauvaisbuissonfestival.placeminute.com. Booking fees included. Free for children under 12 years old upon presentation of ID.
Internal Currency
The festival operates with an internal currency called "buisson" (1 buisson = €1.25). Cash is not accepted at points of sale: you must purchase "buissons" at the exchange counters located at the entrance and on the site. "Buissons" are non-refundable.
On-site
Bars and catering on site. Reusable Ecocup glasses distributed at the entrance. First-aid team (Croix-Blanche) and alcohol prevention (Alcool Assistance).
Contact
- Association: La Maumission — Rue de la Mairie, 44540 Maumusson
- Email: [email protected]
- Phone: 07 45 81 37 97
- Official website: omauvaisbuisson.fr
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Travel to this festival
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Where does it take place — Ô Mauvais Buisson
Plan d'eau de la Fontaine aux Merles
Esplanade de la Fontaine aux Merles, 44540 Maumusson