East Earl police didn't encounter the most refined of Dropkick Murphys' mega fanbase this past weekend.

And the American Celtic punk-rock band’s singer Ken Casey is taking that personally.

A couple days after 18-year-old William Clayton assaulted two officers while screaming his allegiance for the Boston-based act, Casey made a peace offering.

He called police Chief Kevin McCarthy on Tuesday to make sure his officers were OK — and offer some of the band’s garb.

“I’d have preferred he yelled another band’s name,” Casey joked Tuesday evening from his band’s latest tour stop in San Diego.

“We’re going to send a box of T-shirts,” he said. “Maybe (the officers) can wear them into court.”

McCarthy said he isn't familiar with the band, but many of his officers are.

"They're a little younger than me," he said with a laugh.

Casey acknowledged the Friday night incident on Division Highway was no laughing matter.

Clayton, apparently in a drug-fueled rage, punched and kicked the officers and shrugged off a Taser zap while resisting arrest, court documents show.

Officer Courtenay DeLaney was hospitalized, but McCarthy said she and Officer Michael Lutz returned without missing a shift.

“Once I saw the injuries weren’t serious, it was almost laughable. But, it is serious. The guy’s lucky he didn’t get shot,” Casey said. “We have parents and kids at our shows, so we don’t stand for that kind of behavior.”

That said, Casey has seen his share of rowdy fans at shows. He sympathized with McCarthy’s officers while recalling one belligerent fan who wasn’t corralled until 10 to 15 people stepped in.

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“You never know what you’re going to run into as a cop,” Casey said. “Those guys are out there dealing with crazies all the time.

“I just decided to reach out to the chief. We wanted to give the officers our best wishes,” he said, “and see if we could pay back for our unruly fan with tickets.”

McCarthy said "it was a very nice gesture."

"There are 350 million people in this country and he was concerned with the well-being of Officers DeLaney and Lutz," McCarthy said. "That shows he was raised right."

Casey, during a respite from a hectic tour schedule that will reach South America and Europe in coming months, said he’s been to Lancaster multiple times.

The Murphys played the area several times and have a charity based in Philadelphia.

Thanks in part to their song, "I'm Shipping up to Boston," being featured in the 2006 Academy Award-winning movie The Departed, they have gained a global following. The band's Facebook page has 1.76 million likes, and counting.

Casey and his bandmates learned of the bizarre incident from fellow Boston act, The Mighty Mighty Bosstones.

“We have a fun ribbing thing going on,” Casey said. “Another band said ‘what else would you yell when you’re attacking the police?’”

Clayton is out on bail, but faces serious charges, including felony aggravated assault. Police are investigating what type of drugs he might have been on.

“We’ll pray for this guy,” Casey said, “and hopefully he’ll get the help he needs.

“Either that, or we’ll sic the Amish Mafia on him.”