International artist booking and global tour routing — 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. As a music booking agency built on 13+ years of real relationships, our strength is artist representation that matches the right talent to your event. Any genre. Any scale. Let's talk.
We work directly with agencies and management firms across the globe. 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 international tour routing and 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. From global tour booking to one-off headline slots, here's the level of talent we 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 Live Music
Countries Reached
Genres We Book
Agency Partnerships
International tour routing across every continent — 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 of Mullin's Horizon and an international booking agent with over 13 years in the live music industry.
Born in Vienna, Austria, half French from Dijon, Bourgogne — I've had wanderlust in my blood from day one.
It all started under a different name — Irieunity — born out of a deep love for live music and the magic that happens when the right artist meets the right stage. What began as a passion project turned into a 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 went fully independent. Mullin's Horizon is the result — built on everything I've learned, every relationship I've nurtured, and a deep belief that this business works best when it's personal and honest.
Today I'm based in East Bay, California — an international artist booking agency based in California with global operations. 84+ countries and counting. I 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 global tour to route? We'd love to hear about it. Reach out — no booking inquiry is too big or too small.
