International artist booking built on real relationships, real experience, and a genuine love for live music. From club stages to stadium tours — we make it happen.
We don't keep an exclusive roster — and that's the point. Our strength is our network, our relationships, and knowing exactly how to match the right artist to your event. Any genre. Any scale. Let's talk.
We work with some of the biggest agencies and management firms in the world. That means access to talent at every level — from the next big thing to the names everyone knows.
We don’t just book acts and move on. We build real, lasting relationships with everyone we work with — agencies, managers, promoters. That’s how the best shows come together.
Every booking is handled with full discretion. We know the sensitivities that come with high-profile talent and major events — what you share with us, stays with us.
From sourcing the right artist to managing every detail of the booking — we handle it all so you can focus on what matters: the event.
We tap into our global network to find the perfect match for your event — any genre, any budget.
Transparent fees, professional contracts, and terms that protect both sides.
From confirming the date to coordinating arrivals — we manage the entire lifecycle.
Sound, lighting, staging — we bridge the gap between artist needs and venue capabilities.
Specialized in galas, brand activations, and high-end private celebrations.
Strategic guidance on entertainment budgets, artist selection, and event concepts.
We don't name-drop — our artists and partners do that for us. Here's the level of talent we book, tour, and move across the globe.
We've toured with the best.
Chart-topping talent on speed dial.
Main stage, every time.
Artists who own the road.
MOBO, BET, MTV — the full lineup.
Tomorrow's headliners, today.
We Collaborate With
Years in the Game
Countries & Counting
Genres We Move
Agency Partnerships
From sold-out arenas in Europe to beachfront festivals in the Caribbean, open-air stages in Africa to intimate club shows across the Americas. 84+ countries and counting.
Countries Toured
Continents Active
Years Touring
I'm Isabelle Mullin — founder and driving force behind Mullin's Horizon.
Born in Vienna, Austria, half French from Dijon, Bourgogne — I've had wanderlust in my blood from day one. I've been in the live music industry for over 13 years, and it started under a different name — Irieunity — born out of pure love for reggae, dancehall, and the magic that happens when the right artist meets the right stage. What began as a passion project turned into a decade-long career that took me across continents.
I spent years heading up artist bookings for Africa, based out of Nairobi, Kenya. Before that, Bangkok, Thailand — and of course Vienna, where my European network was built from the ground up. No matter where I lived, I always booked artists all over the world. That's never changed — the time zones just shifted.
After more than a decade in this industry, I made the decision to go fully independent. Mullin's Horizon is the result — a fresh start built on everything I've learned, every relationship I've nurtured, and a deep belief that this business works best when it's personal, honest, and driven by genuine passion.
Today I'm based in East Bay, California, but the work is global. I book artists across 84+ countries, work with promoters and agencies on every continent, and still get the same rush from a perfectly executed show that I did on day one.
I didn't build this agency to be the biggest — I built it to be the one people want to work with again. Every artist deserves someone who genuinely fights for the right opportunity, and every promoter deserves a partner who actually gets it done.
This isn't just a business to me. I genuinely love live music, I love the hustle, and I love seeing an artist's face when they walk onto a stage we put together.
No corporate overhead, no red tape. When you work with Mullin's Horizon, you work directly with our core team. Fast decisions, clear communication, real results.
Vienna. Bangkok. Nairobi. California. My network spans continents because I've lived and worked across them — not just visited.
To connect outstanding artists with live events that deserve them — and vice versa. We're here to make booking feel easy, communication feel honest, and partnerships feel like they'll last. Because the best shows happen when everyone's on the same page.
A world where live music grows beyond borders — where artists and events find each other no matter the distance. We're building those bridges, one show at a time, discovering new talent and creating experiences people remember forever.
13 years of international booking, countless shows, and a deep understanding of what artists need and what promoters expect. That's not something you learn from a textbook — it comes from being in the room, backstage, and making sure everything runs smoothly no matter what time zone you're in.
We work closely with our partners — never at arm's length, always in the trenches together.
Got an event coming up? A festival to program? A wild idea that needs the perfect artist? We'd love to hear about it. Reach out — no inquiry is too big or too small.
