He was found guilty of kicking and beating 19-year-old Mustafa Jafari after an argument.
The artist faces up to two years in prison over the incident.
He was detained on July 3 in connection with a street brawl in Stockholm.
He will go on trial over his alleged involvement in a street brawl in Stockholm.
US President Donald Trump offered Saturday to guarantee the bail of rapper ASAP Rocky, detained in Sweden on suspicion of assault following a street brawl.