Ed Sheeran nearly spilled the tea -- or a sip of it, at least -- about a forthcoming music video for Taylor Swift's "End Game" when an interviewer caught him off guard backstage at this weekend's Jingle Ball in Los Angeles, where he performed the song with Swift in public for the first time.  

A correspondent for ET asked him whether he'd be appearing in a video for his big Reputation collaboration with Swift and Future, and whether it had been filmed yet. Even if he'd stayed silent, his face said it all.  

taylor: ed, don’t say anyone about end game music video, PLEASE
ed: ok ok
-
x: there will be end game music video?
ed: yeahhh, EHHH NO NO I DONT KNOW

also ed: pic.twitter.com/lFd6iAdvfS

— sofi ------ (@swiftinfinitely) December 3, 2017

"I don't know what I can say ... but there is a music video for it," Sheeran confirmed, which is just enough news to whet fans' appetites. The short sound bite slowly made its way around Tumblr and Twitter Sunday (Dec. 3).  

Watch the clip below.

Ed Sheeran confirms there will be a music video for 'End Game' backstage at the Jingle Ball. [@etnow] pic.twitter.com/Au3GfeJulN

— TSwiftPR Media (@TSPRMedia) December 3, 2017