Caution and concern bring heavy police presence to Avicii concert at Jiffy Lube Live

In this Aug. 30, 2013 file photo, Swedish DJ, remixer and record producer Avicii poses for a portrait, in New York. Many people who attended an electronic dance music show featuring Swedish disc jockey Avicii at the TD Garden arena on Wednesday June 25, 2014 showed up intoxicated and several were hospitalized, authorities said. The Emergency Medical Service took 22 people to the hospital, and a dozen more were under evaluation, EMS Deputy Superintendent Mike Bosse told the Boston Herald. (Photo by Amy Sussman/Invision/AP, file)

BRISTOW, Va. (WJLA) – Thousands of excited teens and twenty-somethings poured into Jiffy Lube Live Saturday night for a concert by the Swedish DJ who goes by Avicii.

"He makes really good music,” said Chase Board of Roanoke, Virginia. "The way he gets you pumped, the rhythm, the vibes in his songs, it's amazing."

There were a number of ambulances coming and going as the concert went on, but on a lot more than music happened during the Avicii show Wednesday night in Boston.

Boston EMS said more than 50 people had to be treated on scene, and concert company Live Nation says 39 others were transported to the hospital. The company says more than half of those transported were not allowed in because they'd shown up already intoxicated.

Boston police said Molly, a dangerous form of the club drug ecstasy, appeared to be a factor in the medical issues along with alcohol.

Many who came out on Saturday had heard about Boston, and say although Molly is often around at concerts like this, what happened in Boston is not normal.

"Whatever people do on their own time, that's what they do, but Avicii plays for the love of his fans, and he likes to have fun,” said Board.

"It's kind of scary, but I think we're responsible enough to not that let that happen,” said Maria Ernest.