The Chainsmokers perform at Philly couple's Rittenhouse wedding

One lucky Philly couple got an impromptu performance from EDM-pop duo the Chainsmokers at their wedding reception at the Rittenhouse over the weekend.

Groom Harry Roberts and bride Morgan y had hired 18-piece band LA Starz of EBE Talent to perform at their wedding. However, as it turns out, Harry is a longtime friend of Chainsmokers member Andrew Taggert, and he asked the musician to perform at the wedding as well.

During the reception, Taggert joined the band on stage at Harry's direction alongside fellow Chainsmokers member Alex Pall to perform tracks including "Closer," "Paris," and "Something Just Like This." The pair were also joined on stage by the bride and groom, as well as several members of the wedding party. More than 200 attendees were there to watch the concert.

"It was sick," Steve Meranus, managing partner of EBE, wrote of the performances. "Looked like a Fillmore concert!"

Philly fans, however, won't be seeing the Chainsmokers at that venue the next time they're in town. Instead, the band will play on the Benjamin Franklin Parkway for Budweiser's Made in America festival, which runs Sept. 2 and 3 this year.

Congratulations to the bride and groom. After all, it isn't often a wedding party looks like an EDM show. Check out the performance here: