Rapper Dizzee Rascal was found guilty of assaulting his former fiancée Cassandra Jones.
The musician, whose real name is Dylan Kwabena Mills, denied assaulting Ms Jones by pressing his forehead against hers and pushing her to the ground during a "chaotic" row at a residential property in Streatham, south London, on June 8 last year.
A woman was reported to have minor injuries following the incident, but did not require hospital treatment.
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The 36-year-old behind chart-topping singles Bonkers and Dance Wiv Me has two children with Ms Jones.
During his trial at Wimbledon Magistrates' Court on Monday, the court was told Mills and Ms Jones, who had been together for nine years before their split in February 2021, argued when Mills dropped off their daughter on the day of the assault.
The prosecution said Mills "barged" his way into the property with his son under his arms before "screaming and shouting" and banging his head on the fridge three times.
Mills is said to have approached Ms Jones, "put his forehead against hers and pushed her around the room" and then "pushed her to the ground".
The musician was arrested at the scene and gave a prepared statement during police interview in which he denied the allegations and accused Ms Jones of causing injuries to his arm.
Mills released his debut album, Boy In Da Corner, in 2003, and his seventh studio album, E3 AF, is due out on October 30.
He was made an MBE for services to music in the Queen's Birthday Honours 2020, and performed at festivals in August including Live at Lydiard in Swindon and Boardmasters in Cornwall.
Mills, of Sevenoaks in Kent, was found guilty at Wimbledon Magistrates' Court on Monday.
Following the verdict, Mills took a camera from a PA Media photographer outside of court and threw it into a road, smashing it.
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