Police have confirmed that the body recovered from the river Nith in Dumfries was that of 42-year-old Hayley Jayne Astley from Heywood Place, Ryedale Road in Dumfries.
Investigations are continuing into the circumstances surrounding the death.
Dumfries and Galloway Police would like to speak to anyone who may have been in contact with Hayley before 10.30 pm on 2nd November.
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Early enquiries suggest the men may have taken the drug Blue Valium. Two of them remain in hospital with breathing problems.
More than 8,000 people are expected to attend over the three day event, which starts at 7pm tonight.
The local MP and leader of the Liberal Democrats says it was a "joyful" day for locals and former locals alike.