TL;DR
- Trends
- Two people or more in matching or complementary costumes pass back-to-back and lip-sync to “What’s Up” by 4 Non Blondes as the camera moves around them.
- Views
- 280.5M+ combined views across six videos.
- Format
- Unique costumes + back-to-back poses + lip syncing + a moving camera
- Why It Works
- Familiar characters make the reveal recognizable, while the seasonal connection gives viewers a reason to revisit the format.
- Use It When
- You want to plan Halloween content early, especially if your brand can connect two or more recognizable characters or identities through a costume swap.
What is this trend
Heyy creators, if you have lots of friends, we believe this trend will suit you well! Cause let’s be real, it’s perfect to make the costume reveal with your people rather than just being a loner, right (whoops)

This trend features two or more people dressed in recognizable Halloween costumes. They stand back to back while lip-syncing to the “What’s going on” sound. The audio is actually named “What’s Up” by 4 Non Blondes.
And so I wake in the morning and I step outside
And I take a deep breath and I get real high
And I scream from the top of my lungs
"What's going on?"
Across six videos we checked, the format drew 280.5M+ combined views. The character examples include Matilda’s Trunchbull and Bruce, Coraline’s Other Mother, Pennywise and Freddy Krueger, and a cheerleader paired with a boxer.
Go deeper into the trends shaping content.
This article is part of Trends Pro, with deeper breakdowns, examples, and insights beyond our free coverage.
What you get with Pro
One subscription. The full depth behind what's going viral and how to use it.
Viral format breakdowns
See what makes a trend work, from the hook to the payoff.
Hook & trend intelligence
Spot patterns across rising formats before they peak.
Digital audience insights
See what audiences save, share, and come back to.
Exclusive template access
Turn proven breakdowns into content with ready-to-use templates.
Get full access to Trends Pro
Go beyond what's viral with deeper breakdowns, insights, and templates.
Secure checkout via Stripe • Cancel anytime
Already have an account?