Crowd watching the two-player K-pop dance challenge scored live on Dynamo's rental LED wall at the BTS The City Arirang London activation, Outernet London

BTS The City Arirang London: how a rental LED wall became an interactive K-pop activation at Outernet

When Korea Tourism Organization brought its โ€œImagine your Koreaโ€ campaign to London, the brief went well beyond playing a film on a big screen. The โ€œBTS The City Arirang Londonโ€ activation at Outernet London needed a rental LED wall that could carry campaign content, host a live-scored K-pop dance challenge and sit inside a fully finished, printed stand โ€” all delivered into one of central Londonโ€™s most tightly managed venues.

In this case study we explain how we did it: the DRE Series P1.29 wall we specified, how live camera feeds were composited over campaign content in real time, where the audio went (you couldnโ€™t see it), and what it takes to deliver an activation like this inside a central-London venue on a tight load-in schedule.

Key takeaways

  • A rental LED wall can be an interactive canvas, not just a playback surface โ€” here it scored a live two-player dance challenge in front of a crowd.
  • Live PIP compositing through the video processor let camera feeds, animated characters and scores sit over the main campaign content with no content re-render.
  • Ground support meant no rigging points were needed โ€” useful in venues where flying a screen is not an option.
  • Concealed audio (speakers hidden above and below the screen behind acoustic fabric) keeps the finished stand clean without giving up sound quality.
  • In central London, the RAMS, power planning and load-in schedule are as much a part of the delivery as the screen itself.

Project facts

Front view of the 4,960 x 2,976 mm DRE Series P1.29 LED wall built into the printed timber stand at the BTS The City Arirang London activation
Item Details
Event โ€œBTS The City Arirang Londonโ€ brand activation, Outernet London (live 8โ€“10 July 2026, installed 6โ€“7 July)
Client Korea Tourism Organization (KTO), โ€œImagine your Koreaโ€ campaign, with production agency Bom CD&P
LED product DRE Series P1.29 rental LED wall
Screen size 4,960 mm ร— 2,976 mm (approx. 14.8 mยฒ)
Cabinet layout 10 wide ร— 6 high โ€” 60 cabinets, ground-support frame (no rigging points used)
Resolution 3,840 ร— 2,304 px (approx. 8.85 million pixels)
Processing NovaStar H5 with live PIP compositing of the dance-challenge camera feed
Audio Full audio package โ€” speakers concealed above and below the screen behind acoustic fabric, DI boxes, console
Structure Fabricated timber stand with printed graphics, built under Dynamoโ€™s management
Power 63A 3-phase distribution positioned behind the screen

The brief: an activation, not a video wall

KTOโ€™s London activation was built around K-pop โ€” BTS was the draw โ€” and the campaign team wanted visitors to do something, not just watch something. The centrepiece was a K-pop dance challenge: two players at a time, filmed live, scored on screen, with animated characters dancing alongside them.

That shaped the whole specification. The screen had to be fine-pitch enough to hold up at close range in a busy venue, the processing had to composite live camera feeds over campaign content in real time, and the whole thing had to read as one finished piece of scenery โ€” screen, stand, graphics and audio together, with the technology out of sight.

Visitors at the BTS The City Arirang London activation inside Outernet London, with the Korea Tourism Organization campaign playing on the Dynamo LED wall

The solution: a cabinet-accurate DRE Series P1.29 wall on ground support

We specified our DRE Series rental LED at P1.29 pixel pitch. Fine pitch matters here because activation audiences stand close: this is a screen people walk right up to, dance in front of and photograph, not a screen viewed from the back of an arena.

Cabinet layout and resolution

The wall was built cabinet-accurate at 10 cabinets wide by 6 high โ€” 60 cabinets in total โ€” giving a screen face of 4,960 mm ร— 2,976 mm, around 14.8 mยฒ. Each cabinet carries its own pixel grid, so the mapped resolution follows directly from the layout: 3,840 ร— 2,304 px, approximately 8.85 million pixels. That is beyond UHD width on a five-metre screen, which is what keeps text, scores and character animation crisp at armโ€™s length.

Why ground support

The wall sat on a ground-support frame with no rigging points used. In a venue where flying hardware is either restricted or simply unnecessary, ground support lets the screen be positioned exactly where the stand design needs it, carries the load to the floor, and comes out again cleanly at de-rig. It also meant the LED build and the timber stand build could come together as one structure rather than two separate trades working around each other. We cover the trade-offs in more depth in our guide to rigging versus ground stacking.

The interactive layer: a dance challenge scored live on screen

Crowd watching the two-player K-pop dance challenge scored live on Dynamo's rental LED wall at the BTS The City Arirang London activation, Outernet London

The standout element of this project was the K-pop dance challenge. Visitors stepped up in pairs, cameras picked them up live, and the screen showed each player beside an animated character with a running score โ€” all in front of a watching crowd.

Technically, this ran as live picture-in-picture compositing through our broadcast-grade video processing. The interactive camera feed was composited over the main campaign content in real time by our switcher/scaler, so the activation could move between campaign film, the two-player challenge layout and combined looks without re-rendering content or swapping sources by hand.

This is the part of the project weโ€™d point other brands at. The same rental LED wall that plays your campaign film can carry live cameras, game mechanics and scoring โ€” the difference is in how the processing chain is specified and commissioned, not in buying different hardware. We saw the effect on the floor: a queue of people waiting to be on the screen, and a crowd staying to watch them.

Two visitors playing the K-pop dance challenge at Outernet London, with live camera feeds, animated characters and scores composited on the LED wall in real time

Audio you could hear but not see

An activation needs sound, but visible speaker stacks would have broken the finished look of the stand. Our audio package put the speakers above and below the LED screen, concealed behind acoustic fabric, with DI boxes and a console handling sources and control. The result: music and challenge audio projecting straight out of the screen wall, with nothing visible except screen and graphics.

One build, not two: the printed stand structure

Printed graphics wall of the BTS The City Arirang London stand, fabricated and installed under Dynamo's management

Around the screen sat a fabricated timber stand with printed campaign graphics, built under Dynamoโ€™s management. Taking responsibility for the stand as well as the screen meant the LED aperture, speaker positions, cable routes and graphic panels were all designed against each other from the start โ€” so the screen sits in the structure like it was always meant to be there, because it was.

For the client, it also meant one point of responsibility on site. Screen, structure, audio and signal all arrived under one delivery plan rather than being coordinated across separate suppliers during a two-day install window.

Delivering it in central London

Outernet London sits about as close to the middle of London as a venue can, and it is run accordingly: a complete RAMS package was required before load-in, and the install had to land inside tight scheduled windows on 6โ€“7 July, ready for the event to run 8โ€“10 July.

Power was planned around the venueโ€™s 63A 3-phase supply, with distribution positioned behind the screen โ€” keeping cable runs short and the front of house completely clean. Signal and power cabling across the stand was part of our scope, so nothing was left to be improvised on the day.

Wide view of the Imagine your Korea activation at Outernet London showing the LED wall, printed timber stand structure and visitor welcome desk

None of this is glamorous, but it is usually where activations go wrong. Compliance paperwork, power planning and honest load-in scheduling are part of the product when you hire an LED wall for a central-London event โ€” if your supplier treats them as an afterthought, the screen spec wonโ€™t save the show.

The result

The DRE P1.29 rental LED wall playing the Imagine your Korea campaign film between printed graphic panels at Outernet London

Over three live days, the activation ran campaign film, live two-player dance challenges and combined looks on a single five-metre LED canvas, inside a finished printed stand, with concealed audio โ€” installed in two days and removed just as cleanly afterwards.

For KTO and Bom CD&P, the screen did what activation centrepieces are supposed to do: it gave visitors a reason to stop, take part and share it. For anyone planning a brand activation, the wider point is that LED screen hire doesnโ€™t have to mean a plain playback wall โ€” with the right processing and a properly integrated build, the screen becomes the game, the stage and the scenery at once.

Get a quote for your next activation

If youโ€™re planning a brand activation, product launch or event and want an LED wall that does more than play a loop, we can help โ€” screen, structure, audio, power and compliance under one roof. Tell us the venue, the dates and what you want visitors to do, and weโ€™ll come back with a specification and price in writing.

Get a quote or call us on +44 (0)203 489 9878.

Written by: Daniel Reynolds, Managing Director, Dynamo LED Displays

Published: 31 July 2026

Daniel Reynolds
Daniel Reynolds

Daniel Reynolds is Managing Director and founder of Dynamo LED Displays (est. 2013). He leads the specification and delivery of LED display solutions, with expertise in IP networking and both synchronous and asynchronous LED video systems across a range of control environments, including NovaStar and Brompton. Daniel also works as an LED consultant on international projects, supporting clients with system design, technical due diligence, and delivery planning.ย 

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