Imagine getting an event invite with very few details—and ending up at a luxury dinner in the back of a moving van underneath the Hollywood sign (or on the flip side, at a remote camp setting filled with masked killers). Or entering an unassuming space and having a secret door or photograph swing open to reveal an entirely new, immersive area. Or being surprised by a waiter who knows a little too many creepy facts about your life, or even by an unexpected trip to Disney World in the middle of a work conference.
These are some of our favorite ways event professionals have surprised and delighted their guests over the years. Adding an element of surprise to an event has long been an effective way to get guests engaged, encourage group bonding and social sharing, and leave a lasting impression on your attendees.
Scroll down to see some of our favorite unexpected event moments from brands like Meta, Häagen-Dazs, Salesforce, HBO, and more.

Popping up in Brooklyn in April 2022, the immersive experience transformed a vacant convenience store into Rose & Rueben’s, a nod to the brand’s founders, Polish immigrants Reuben and Rose Mattus. The entire space—including the products on the shelves and the posters on the walls—"[was] customized and filled with Easter eggs about the brand, from flavor cues to fake business licenses attributed to the founders,” explained Suzanne Sherwood, creative director at Cartwright, the creative agency behind the activation.


Erin Oles, VP of brand experiences and events marketing at Salesforce, told BizBash that these types of surprise-and-delight moments have the ability to create lasting memories. "From the marching band, to our Dreamfest concerts, to our adored characters mingling with the crowds, to creating physical spaces that inspire serendipitous fun moments and photo ops—attendees will talk about those for years to come," she said. See more: Most Innovative Meetings 2022: Dreamforce 2022

After loading into a van and taking a quick drive up the Hollywood Hills, attendees discovered their dinner venue: three large moving trucks parked in an open-air field directly below the iconic Hollywood sign. The trucks were branded with Freeform and Good Trouble signage—and the back of each opened to reveal three distinct, design-forward dining rooms inspired by the show's themes of friendship, love, and young adulthood.

Other unexpected moments included the catering from Love Catering. Intended to reflect upgraded versions of common foods young roommates eat, highlights of the nine-dish meal included hot dogs covered with edible gold foil; chocolate sprinkle doughnuts filled with bacon, tomato, and ketchup; and fruit-covered panna cotta in the shape of faces and hearts. See more: Would You Host a Dinner Party Inside a Moving Truck?


"We worked hard to keep it a secret from our attendees, billing it instead as a surprise group activity," said Kathryn Arce of Engaging Concepts, who planned the event with her business partner Rebecca Grinnals. Disney show producers and directors helped organize a series of surprises to accompany the announcement, including a performance from the Main Street Dapper Dan Barbershop Quartet (pictured), the appearance of characters such as Minnie and Mickey Mouse, and the distribution of mouse ears for all attendees.


The stunt was produced by Giant Spoon. “Fears surrounding data privacy aren’t new, yet to exist in today’s world, we make information about ourselves available every day,” said Giant Spoon co-founder Trevor Guthrie. “Our intention [was] to incite a conversation about future implications over dinner—where data is the main ingredient.” See more: C.E.S. 2020: See the Most Attention-Grabbing Booths and Brand Activations

The day began with typical camp-inspired activities such as archery, ax-throwing, and arts and crafts. During a group jazzercise session, though, things took a surprise American Horror Story-appropriate turn: A bloodied hiker emerged from the woods saying he had narrowly escaped a crazed man.

The evening ended with a marathon of American Horror Story, plus '80s games such as Ouija boards. Craft popcorn and campfire chili were served. Throughout it all, the audience of influencers and super fans was encouraged to capture and share content on social media. See more: FX Hosted a Truly Terrifying Overnight Experience for 'American Horror Story: 1984'

Early in the evening, 400 VIP guests were invited to a downstairs speakeasy, which transformed the children’s portion of the museum into a moody, wood-heavy space with wine barrels and leather furniture. To enter the speakeasy, guests were given edible paper with the passcode; they were then instructed to destroy the paper by eating it. The papers were made from rice starch and potato starch, causing them to dissolve with moisture.

“We try to think of a theme that can be executed with both science and nature, that can be trend-setting, and that can have the food designed around it,” said Katie Middleton, then the senior events manager at the museum. “‘Intrigue’ encompasses mystery, and there’s a lot of mystery around science, so it was a good opportunity to educate attendees too." See more: Why This Benefit Offered Squid Dissection and Lie Detector Tests

The main living room area and kitchen were inspired by Saved by the Bell’s after-school hangout, The Max. The living room also featured a VHS player with '90s movies, and—in a fun surprise—a telephone wall allowed guests to pick up a phone and hear various throwback audio clips like the sound of a dial-up modem. "We celebrate playfulness on our team," said Lacey Hoff, Crush Studio's owner and creative director. "We think the project turned out to be as interactive and vibrant as it was because we truly had so much fun working on it!" See more: How Mike's Hard Lemonade Transformed an Entire House for a Monthlong Experiential Activation

Like any good theatrical experience, though, the set changes didn’t stop there. During dinner, up-and-coming playwrights stood and read pieces of their new work, with their narration sparking more changes to the lights, sound, and scenery. The final transformation of the space took place toward the end of the evening, when another new set was revealed and Tony- and Grammy-winning Broadway star Jennifer Holliday appeared to perform a surprise 25-minute set. And to close out the night, the curtain lifted so guests could take in the view of the entire theater—while a feather drop created one final wow-worthy moment. See more: Why This Fundraising Gala Was Designed After Guests Were Already Seated

Guests who posed inside the sets received two photos—one cropped to just show the set, and one photo that was zoomed out to reveal the true setting. Attendees were encouraged to post the images on social media using the hashtag #ImpostersSweepstakes for a chance to win a luxury travel experience. High Beam Events produced the clever activation.

Guests then drove through Art’s Tailor Shoppe (a reference to the character who creates the heroes’ costumes), where they experienced a surprise moment (pictured) featuring costumes from the show—and some eye-catching pyrotechnics. Later, a DJ performed a live set as fans found their parking spots, where they watched the first two episodes of the animated series. And for one last on-theme surprise, cars were splashed with fake “blood” (a nod to the show’s surprisingly bloody scenes) during a break between episodes. See more: Clever Ways This Drive-Thru Immersed Fans in the Action-Packed World of Amazon Prime Video's 'Invincible'
