According to Variety, the crowd at Coachella reached 100,000 for Harry Styles’ performance on Friday, April 15th. The festival’s capacity is 125,000 and was promoted as sold-out. The remaining 25,000 were said to have attended other concerts at the smaller stages.
Back in 2015, Kaskade is said to have had the largest crowd and holds the record for the largest Coachella performance. The exact numbers from the 2015 festival are unknown.