The Sun reports he was out with his mum, cousin and three friends when they clashed with a group of at least five men in city centre bar Livello.
Aarons, 22, and his group were initially charged with violent disorder but today the prosecution accepted their guilty pleas to the lesser charge of affray.
But Judge Edward Bindloss, sitting at Newcastle Crown Court, said: “The fact I'm adjourning your cases and granting bail is no indication of the likely sentence.
“All options remain open including an immediate custodial sentence."
The judge described the October 2016 melee as "a serious incident with personal violence being used and items being thrown".