Coldplay helped a fan with a proposal during their concert at London’s Wembley Stadium on Aug. 22, but frontman Chris Martin had a few questions first. A video shows Martin joking around with the fan before honoring his request.

It was the moment that shocked and united the world. When legendary alternative rock group Coldplay performed in front of a large crowd at Gillette Stadium in Massachusetts on July 15, even they were unaware that they were about to be at the center of one of the year's most viral moments.