The former winner of TV talent show Pop Idol had said on social media that she was attacked by a man wielding a guitar case.
Ms McManus claimed her jaw was injured in the incident in the Shawlands area of Glasgow at 02:00 on Sunday.
Police Scotland confirmed a 39-year-old-man was the subject of a report to the procurator fiscal.
A 39-year-old-man has been charged in connection with an alleged assault on singer Michelle McManus.