Man proposes in Boston with the help of a flash mob

BOSTON (WHDH) -- Marry me, maybe? A flash mob was on hand to help with a unique proposal in Boston Wednesday.

It was the idea of a 25-year-old man from Boston -- he organized the mob with a little help from the bride-to-be's sisters.

When Cecilie Carroca walked out of the Boston Public library with her boyfriend Tony Boga, she had no idea what she was in for.

In an instant, what appeared to be random people on the plaza turned into a flash mob of dancers who began a surprise performance.

But that wasn't the biggest surprise.

In front of everyone, Tony dropped down on one knee, pulled out a diamond ring and popped the question right then and there.

“I had no idea at all, none. I was so shocked. We came outside and I was like, ‘oh!’” said Cecilie Carroca, bride-to-be.

“I just got on one knee and I knew she wasn’t going to be able to speak anyways so I just asked her, ‘will you marry me?’” said Tony Boga.

“I took quite a few seconds just not being able to speak. I said yes,” Carroca said.

Tony started planning the surprise along with Cecilie's two sisters. They say it was tough keeping it all secret.

“Because we love them. They’re great, they’re an awesome couple,” said Connie Gregorio, Cecilie’s sister.

“We’ve been together for a while; we’ve known each other for a long time. She just makes me happy. There’s no arguments, no nothing. We just always have fun together,” said Boga.

Tony says he decided to propose at the Boston Public Library because it's Cecilie's favorite place; she comes here all the time.

Now the two of them have a wonderful memory to share -- one they'll never forget.