As the weather steamed, about 10,000 music lovers streamed into the Nassau Coliseum's parking lot to check out the 16th annual Vans Warped Tour's traveling extravaganza of pop and punk rock.
While fans came for the bands, the afternoon's stifling heat drew some attention away from the stage. James Borzoni, 19, of Baldwin, sought shelter by ducking in and out of the Coliseum throughout the day.
"Of all the times I've been to Warped Tour, this is by far the hottest," said Rob Spectre, 30, a New York City resident who has been to the show five times. "It's a nightmare."
Medical officials would not say how many people were treated because of the heat.
Even some of the tour's performers -- who already played several times in the heat dome that's plagued the Midwest this week -- struggled with the temperature at times.
"Today, I was wiearing sunglasses on stage and I was glad I was wearing sunglasses because there was so much sweat in my eyes that I was squinting a lot," said Suzie Zelden, singer-keyboardist of Bellmore's The Narrative.
The annual concert retained much of the communal spirit that it is known for, as festivalgoers -- some of whom came from Connecticut and Kansas -- aided compatriots who had fallen in the mosh pits or were having problems with the heat.
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Still, even with the temperature, it was a "cool" music day.
"It's pretty cool," said Sean McNally, 19, of Baldwin. "I like the people. Everyone's different."