The KISS rocker was rushed to hospital on Tuesday after his SUV crashed into a parked vehicle on the Pacific Coast Highway in Malibu, California, but he has spoken out to reassure fans he is OK.
"Thanks, everybody, for the kind wishes. I'm completely fine. I had a slight fender bender. It happens. Especially to those of us were horrible drivers. And that's me. All is well," he posted on X.
A spokesperson for the 76-year-old musician told Billboard that Gene is "already back to work" after being discharged from hospital.
His wife, Shannon Tweed, told NBC4 Investigates that Gene passed out and his car "careened across several lanes of traffic" before hitting another vehicle.
She also said doctors recently changed his medication and he needed to drink more water as a result, but he was not a big H2O drinker.
The Los Angeles Sheriff's Department told the outlet the Rock and Roll All Nite hit maker's Lincoln Navigator smashed into a parked car.
According to TMZ, nobody was hurt in the accident.
Simmons' crash comes just a month before KISS are due to play an "unmasked" show in Las Vegas.
The iconic rock band performed their last stage show at New York's Madison Square Garden in 2023, but KISS are coming out of retirement to appear at the KISS Army Storms Vegas convention, which runs from November 14 until November 16.