Coldplay’s Chris Martin had warned fans they could have their faces plastered on the jumbotron — just moments before an embarrassed Astronomer CEO Andy Byron was busted canoodling with his head-of-HR Kristin Cabot in front of tens of thousands of people.

“Now what we’d like to do is say hello to some of you,” the frontman told the audience, newly emerged video shows.

“The way we’re going to do that is, using our cameras, you can look at the screens and we can see who’s out there and say hello. Let’s go looking please.”

The camera then zeroed in on a fan celebrating his birthday at the Boston concert Wednesday night.

Byron and Cabot were next up.

The wide-eyed pair flashed up on the jumbotron roughly 40 seconds after the “Fix You” crooner first gave out the warning.

“Either they’re having an affair or they’re just very shy,” Martin could be heard saying as the audience laughed.

After realizing they were on screen, Cabot was spotted covering her face and turning her back to the camera as Byron ducked down out of view.

“I hope we didn’t do something bad,” Martin said as the pair scrambled to hide.

Neither Byron nor Cabot, who both have families of their own, have commented publicly.

They were outed by internet sleuths after a clip of the moment spread like wildfire on social media Thursday morning.

“I had no idea who the couple was. Just thought I caught an interesting reaction to the kiss cam and decided to post it,” Grace Springer, who filmed the original viral video, told the US Sun in the wake of the fallout.

“A part of me feels bad for turning these people’s lives upside down, but play stupid games … win stupid prizes.”