Oh say will you marry me: Anthem singer engaged on Marlins Park field

How's this for a nerve-wracking three minutes?

Cassandra Bersach, 24, stood in front of more than 25,000 fans at Marlins Park on Tuesday and belted out the national anthem, not knowing what awaited her after the last syllable of "brave."

To her surprise, her boyfriend, Juan, walked out onto the field and dropped down on one knee.

Cassandra and Juan actually met three years ago at the Marlins Park groundbreaking, so the stadium was a perfect setting for the proposal.

"We like to joke around that we owe the Marlins our relationship," Cassandra said.