Deutsche Telekom: Hologram Christmas Surprise

Deutsche Telekom stages a multi-city, multi-media Christmas surprise where people across five countries believe they are seeing Mariah Carey perform live, right in their city square.

The event is described as unfolding simultaneously in Germany, Croatia, Macedonia, Montenegro, and Poland. After roughly 10 minutes, the hologram “breaks” into the sky to reveal the surprise, then reforms to lead the connected crowds through “Silent Night”, finishing with “All I Want for Christmas Is You”.

How the spectacle is engineered

Mechanically, each city is linked live to the others, enabling interaction across locations while the performance plays out on large-scale public screens. Attendees are also given a QR code that takes them to a smartphone experience featuring a candle flame, turning the crowd into a coordinated visual.

In European telecom brand marketing, making the network feel like a shared human experience is a reliable way to give an invisible service a visible emotional payoff.

Why it lands as more than “a stunt”

This works because the surprise is collective, not individual. People do not just watch content. They witness their city being connected to other cities in real time, and that connection is the product truth Deutsche Telekom wants remembered. Because the cities are live-linked, the audience experiences “connection” as something happening to them, which makes the brand promise feel credible. The real question is whether your experience lets people feel the benefit in the moment, not just understand it in hindsight. If your brand sells connectivity, a shared public ritual beats a standalone content drop.

Extractable takeaway: When the benefit is intangible, engineer a shared moment that makes the benefit felt, then let the crowd carry the story.

What the numbers are really doing

The piece is framed with scale metrics. Attendance is described as 12,000 people in total, with an additional 27,000 watching via a live internet stream on lifeisforsharing.tv. Treated as reported figures, the strategic point is clear: the “in person” crowd creates authenticity, and the stream extends reach without losing the feeling of simultaneity.

Stealable patterns for cross-market surprise

  • Build one shared ritual. A carol everyone recognises becomes the simplest multi-language participation layer.
  • Make the reveal part of the story arc. Belief, disruption, then a coordinated finale gives the audience a plot to retell.
  • Link physical and mobile. A QR-driven phone element can turn a crowd into a synchronised visual without complicated instruction.
  • Design for “togetherness at distance”. The emotional payoff comes from knowing other cities are experiencing the same moment at the same time.

A few fast answers before you act

What is the “Hologram Christmas Surprise” in one line?

A simultaneous, five-country public concert that uses a Mariah Carey hologram and live city-to-city links to create a shared Christmas moment at scale.

What is the core mechanism that makes it feel real?

Live-linked public screens across cities, plus on-stage interaction cues and crowd participation elements that play out in real time.

Why add the QR code candle experience?

It gives the crowd a simple coordinated action, visually reinforcing the “connected” theme and making the audience part of the show.

How do you keep it from feeling like a pure tech demo?

Lead with a shared ritual and a simple participation layer so the emotion reads first, and the technology disappears into the experience.

What is the most transferable lesson?

If your brand benefit is intangible, engineer a shared public moment that makes the benefit visible, then let people do the storytelling for you.

Mercedes-Benz: Transparent Walls for PRE-SAFE

For the PRE-SAFE® precrash system from Mercedes-Benz, ad agency Jung von Matt in Germany set out to make chaotic traffic intersections safer.

The idea was to let everyone “look around the corner” as if walls were transparent. In this execution, “transparent walls” means projecting a live camera view onto the building edge so the blind spot becomes visible. A camera filmed what was happening out of sight around the corner, and the live images were projected onto an 18/1-format billboard mounted on the building edge for approaching traffic to see.

When out-of-home becomes a live safety interface

This is not an awareness poster. It behaves like infrastructure. The corner. The blind spot. The moment of uncertainty. All become the media placement and the message at the same time.

The real question is whether your safety story behaves like a tool at the decision point, not a slogan people ignore.

How the mechanism creates “transparent walls”

  • Capture. A camera records the street view that drivers cannot see until they commit to the turn.
  • Project. A large-format display on the building corner shows that view in real time.
  • Anticipate. People approaching the intersection get a few extra seconds to recognise a cyclist, car, or hazard.

In urban mobility and automotive safety communications, making risk visible in the moment can change behaviour faster than warning copy.

Why it lands

Safety messages often fail because they arrive as abstract advice. This one arrives as immediate utility. It gives people a concrete, legible advantage at the precise point where bad outcomes happen. Because the live projection turns hidden risk into visible information, the benefit is believed without asking anyone to trust a claim. Safety-led brand work should earn attention through utility, not admonition. The result feels less like advertising and more like “someone fixed a problem.”

Extractable takeaway: The most persuasive safety communication is not a claim. It is a demonstrable reduction of uncertainty, delivered at the exact moment people need it.

What the brand intent looks like underneath

The stunt does double duty. It dramatizes what PRE-SAFE® is for without explaining sensors, thresholds, or system logic. It also signals a brand posture. Mercedes-Benz is not only selling performance. It is selling anticipation.

Steal this pattern: make uncertainty visible

  • Build the message out of the environment. Pick a real-world constraint your audience feels, then solve it visibly.
  • Make the proof self-evident. If people can understand the benefit in one glance, the idea scales.
  • Reduce uncertainty, not fear. Practical clarity outperforms shock in public safety-adjacent work.
  • Choose the right “moment.” Place the intervention where decisions are made, not where people are merely passing through.
  • Design for all road users. Intersections are shared systems. Make the benefit readable for drivers, cyclists, and pedestrians.

A few fast answers before you act

What is “Transparent Walls” in one sentence?

It is a digital out-of-home installation that shows live footage from around a blind corner on a building-edge billboard, so approaching traffic can spot hazards earlier.

How does this connect to PRE-SAFE®?

It demonstrates the value of anticipation. Seeing danger earlier is the human equivalent of what precrash systems aim to deliver technologically.

Why use a live camera feed instead of a scripted film?

Because real-time content makes the utility undeniable. People trust what they can see unfolding right now.

What are the main execution risks?

Latency, visibility in different lighting conditions, weather robustness, and ensuring the display informs rather than distracts drivers.

How would you measure success?

Observed speed adjustments, braking behaviour changes, near-miss reduction at the intersection, dwell/attention metrics, and sentiment around perceived usefulness.

McDonald’s Angus Burger: Grill Smoke

When the medium is literally the product moment

A great ambient strategy by Leo Burnett Puerto Rico to launch the Angus Burger for McDonald’s.

The mechanic: “smokvertising” in one move

Here, “smokvertising” means using real grill smoke as the placement. As smoke rises, imagery and copy are projected onto it, so the message appears to live inside the smell and heat of cooking rather than on a static board.

In high-frequency food and beverage categories, ambient work performs best when it hijacks a real-world byproduct of consumption and turns it into a media surface.

Why it lands

This is attention without shouting. People notice it because it behaves unlike advertising, then the sensory context does the rest. Smoke is already a cue for freshness and grilling, so the brand gets meaning “for free” before a single word is read. It also creates a built-in crowd moment: smoke draws eyes, the projection rewards the look, and the whole thing becomes naturally filmable.

Extractable takeaway: If you want a product to feel immediate, put the message inside an existing sensory cue people already associate with the product, then keep the copy minimal and let the environment do the persuasion.

What the brand is really buying

This is not only awareness. It is salience. The work aims to anchor “Angus Burger” to the visceral trigger of grilling, so the next time someone sees smoke, they are primed to think of the product.

The real question is how to bind appetite cues and brand memory in the same instant.

What food brands can borrow from this

  • Start from a native signal. Find the byproduct or ritual your category already owns (smoke, steam, heat, condensation) and treat it as media.
  • Make the trick readable instantly. Ambient placements succeed when the viewer understands the rule in under a second.
  • Keep the craft on-message. The “wow” should reinforce the appetite cue, not distract from it.
  • Design for phones. If it films cleanly, it travels without needing paid amplification.

A few fast answers before you act

What is McDonald’s “Grill Smoke” activation?

It is an ambient out-of-home concept where grill smoke becomes the “screen” and brand visuals are projected onto it to promote the Angus Burger.

What is the core creative mechanic?

Use a real, moving, sensory element (smoke) as the media surface, then overlay a simple projected message that only exists while the smoke exists.

Why does this beat a normal billboard for a food launch?

Because it collapses message and appetite cue into the same moment. The medium already signals “fresh off the grill,” which makes the product claim feel more believable.

What’s the transferable lesson for other brands?

When you can borrow a natural environmental cue, embed your message into it instead of placing your message next to it.

What is the main risk of copying this approach?

If the effect is hard to see quickly, or if the sensory cue does not match the product promise, the execution becomes a gimmick rather than a brand reinforcement.