The special started off happily with the teams singing for happy couples, heating up the wedding into a special kind of party for everyone. However, the teams all came together with Lee Juk for a special bride.

The bride had sent her story to 'Infinity Challenge' and had explained that her father had lived for his children all his life. However, just a little before his beloved daughter's wedding, he had an electric accident at work, and had to get his right arm amputated. Worried that he would be a burden and shame to his daughter, he even thought about not attending her wedding.

SEE ALSO: A Korean weekend drama surges to 21.9% viewership with just 4 episodes left

Of course, the bride wouldn't have any of that and made sure her father was at her wedding. However, she couldn't help but tear up, but Lee Juk came out with all the 'Infinity Challenge' members and sang "Don't Worry" for the bride, the groom, and the bride's father. It wasn't just the bride, groom, and the father who teared up at the performance, but the audience at the wedding as well. At the end, the 'Infinity Challenge' members even had a special surprise. The couple had put off their honeymoon to help pay for the father's surgery, so 'Infinity Challenge' paid for their honeymoon to Hawaii instead!

Check out the touching performance above.