The UK rocker has shared that he's doing OK after the incident.

LONDON, ENGLAND - MARCH 02: (EDITORIAL USE ONLY. NO PUBLICATIONS DEVOTED EXCLUSIVELY TO THE ARTIST) (L-R) Matt Kean, Lee Malia, Oliver Sykes, and Matt Nicholls of "Bring Me The Horizon" attend the BRIT Awards 2024 at The O2 Arena on March 02, 2024 in London, England. (Photo by Gareth Cattermole/Getty Images) Gareth Cattermole/Getty Images

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Whoever did this to Oliver Sykes, you might be doomed .

Sykes, the frontman of two-time Billboard Hot 100 hitmaking British rock band Bring Me the Horizon , suffered a mild concussion after an audience member tossed a phone onstage Monday night during the band’s concert in St.…