The US singer played in Bellahouston Park last night as part of the Summer Sessions series of concerts.
Police said 34 people were arrested in and around the venue for a range of offences, including two allegations of sexual assault.
There were eight reported assaults, with the remainder of the arrests for drug and disorder offences.
A 35-year-old man was held after officers seized heroin, ecstasy and diazepam with an estimated street value of £1,500.
Thirty people were arrested at Bellahouston on Saturday night when Swedish DJ Avicii headlined at the park.