Miami Heat fans at a wedding thought the team won Game 6, but they failed to realize that it was the Boston Celtics who were victorious.

The Miami Heat took the first three games of the Eastern Conference Finals over the Boston Celtics with relative ease. The issue is, the Celtics have been fighting hard to avoid elimination.

An Saturday night, the Heat seemingly had Game 6 won 103-102, with Marcus Smart missing a three-point shot. But there was still enough time left on the clock for Derrick White to tip the basketball back in on a put-back shot to give the Celtics the 104-103 victory.

One video went viral after Game 6, where Heat fans at a wedding reacted to the ending. The video shows that all attendees at this wedding reception were celebrating, thinking that Miami had won and advanced to the NBA Finals.

The caption of the video? "We thought we won…"

Miami Heat fans at the wedding hilariously thought the team won Game 6

The chants of "Let's go Heat." The lights shining. The music blaring multiple Heat flags being waved in the reception area. This is, what we call, "moments that precede disaster."

We are unsure of the aftermath after the crowd realized that the Celtics tied up the Conference Finals and forced Game 7.

Miami was able to overcome a sizable deficit in the fourth quarter and was able to take the 103-102 lead with just three seconds remaining after Jimmy Butler made three free throws after getting fouled behind the arc by Boston center Al Horford. The thing is, the Celtics had more magic left in them, courtesy of White's incredibly clutch shot at the buzzer.

Now, Miami will look to avoid becoming the first team to blow a 3-0 series lead in NBA playoffs history. Game 7 will take place on Monday, May 29, at 8:30 p.m. ET and air on TNT.

The Celtics not only ruined the Heat's NBA championship aspirations on Saturday but also a celebration for the ages at this wedding.