A 16-year-old boy was among 13 people arrested at the Gerry Cinnamon concert in Glasgow on Saturday.
The sold out gig was held at Hampden Park on Saturday evening, and drew a crowd of around 50,000 fans.
Police confirmed on Sunday that they had arrested a total of 13 people at the concert for a host of “disorder related offences”.
The schoolboy was arrested on Saturday along with 12 men aged between 16 and 53.
It comes after fans were warned they had to leave the Hampden gig before it finished if they wanted to catch the last train.
A Police Scotland spokesman said: “All arrests made were in relation to disorder related offences.”