The Youtube comedy group Three Amigos Comedy had one of their members dress up like Justin Bieber as part of a prank to fool fans at Bieber's concert in Boston on July 20.

The 16-year-old Jeremy Frost has a striking resemblance to the 19-year-old pop star, and Frost used his doppelgänger to pull off a prank on a group of fans at Bieber's concert in Boston last week, according to Mashable.

Frost is one-third of YouTube's Three Amigos Comedy group, which he runs with his brother Zack, 19, and their friend Jimmy Lawrenson, 16.

To prank Bieber's fans, Frost dressed in the Canadian pop star's signature attire, including a hoodie, oversized sunglasses and snapback hat. He even brought along some friends to pose as members of the paparazzi and bodyguards as he made his way through the crowd at the TD Garden arena in Boston.

The fans' reaction was immediate as teenage girls screamed and chased after Frost. The young comedian posed for several pictures with the unknowing fans and even gave out a few kisses.

"The initial response was great when we walked out for the first time. Luckily, we had a couple of people with us to hold some of the girls back. Then, when we went inside, people continued to take pictures and put them on Twitter," Zack wrote in an email to Mashable.

The prank was inspired by the success of the Three Amigos' Mother's Day video, in which they approached women in supermarkets and pretended to be their sons.

"We knew we'd want to do another prank, and since people tell Jeremy he looks like Justin Bieber all the time, we thought it was perfect," Zack wrote. "Originally, we were just going to do it in a mall or something, but then we found out he was going to have a concert in Boston in July. So we put it off for a couple months. His fans are the most dedicated in the world and we knew that if they even saw a glimpse of him, they'd freak out. We couldn't pass that up."

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Justin Bieber