According to an onlooker, Bonelli was seen and heard “going nuts” on her husband, Ben Taverniti, in the driveway of their Hollywood Hills home in mid-April.
The incident allegedly took place around 7:30 p.m. as Taverniti was sitting in the driver’s seat of his black Bentley.
“She was screaming at her husband calling him a ‘f****t,” the eyewitness told RadarOnline.com.
Minutes later, the passerby witnessed the celebrity makeup artist “kicking the front of the car” before jumping on top of the vehicle.
“Joyce was pounding the car so hard her long blonde wig was falling off!” the eyewitness continued.
The insider revealed the car “must have had a lot of damage” because “you could see a piece of the car falling off.”
Fortunately, the onlooker said Joyce and Ben’s two kids did not appear to be outside while the incident occurred.
The blowup ended after Taverniti sped away from the scene.
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A rep for Bonelli did not respond to RadarOnline.com's request for comment.
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