You've heard of wedding crashers. Joey DiJulio is a bachelor party crasher, of sorts.

For weeks, the suburban Seattle man found himself getting emails from people he didn't know about a bachelor party and a groom he's never met. He saw names of Philadelphia landmarks like Reading Terminal Market thrown around in the emails but couldn't put his finger on where they were located until he searched the names online.

"I had no idea what any of these places are," said DiJulio, 31, who's never been to the Northeast. "After Googling them, everything was pointing to Philadelphia."

It turns out DiJulio, an information technology worker and a married father of one in Burien, Washington, had been mistaken for a friend of the groom with a similar last name. He sat as a "fly on the wall" for much of the email chain until Monday, when he broke the news after the groom's brother wanted a headcount of people attending the party.

Q13Fox.com reported that DiJulio wrote to the group, "I live out in Seattle, WA and although for a moment I thought it might be funny to just show up and be that guy nobody knows but everyone wonders "who is that guy?", buying a plane ticket for a cross-country flight just to crash a bachelor's party might be a bit over the top (although it would be epic!)

The groom, Jeff Minetti, 34, must have agreed that the party would indeed be epic, so the crew urged DiJulio to pack his bags.The Philadelphia real estate agent asked him to attend both the bachelor party March 28 and his wedding May 2 in New Jersey. The guys started a GoFundMe page called "Bachelor Party 4 Guy I’ve Never Met" and earned enough money to pay for DiJulio's trip, putting any more money raised toward Minetti's honeymoon.

"This is the city of brotherly love," Minetti said, even telling DiJulio he could be his best man. "Any and all are welcome."

The groom promises the bachelor party will be a low-key affair at some bars, maybe a casino, to watch March Madness unfold. And while he won't actually get to be the best man — that's reserved for Minetti's 11-year-old cousin — DiJulio has his plane ticket ready to go for next weekend to see a city he's never been to and hang out with a group of guys he's never met.

"I thought, they say in life you regret the things you don’t do, not the things you do." DiJulio told the station. "All I was hearing from Jeff’s friends and my own friends was 'You need to go.'"

The Associated Press contributed to this report