Taylor Swift Becomes the 'Third Wheel' in Fan's Marriage Proposal at 'Reputation' Meet-and-Greet

Jason Kempin/TAS18/Getty Images.
 Taylor Swift performs onstage during the Taylor Swift reputation Stadium Tour at FedExField on July 11, 2018 in Landover, Maryland.

Taylor Swift's surprise was caught on film at a meet-and-greet at the Philadelphia stop on her Reputation world tour when a fan got down on one knee and proposed to the love of his life right in front of her.

It was business as usual for Swift on Friday night (July 14) up until that moment: she spends time with fans at her shows before she packs up and moves onto the next city, but Philadelphia set itself apart thanks to this super romantic surprise that even caught the "Delicate" singer off-guard.

Swift is visibly shocked and thrilled for her fans, and shared photos of the surprise in the hours after the life-changing moment: "They walk into the meet and greet and he says 'We met 5 years ago at the Red Tour' and then...."

Check out the photos of the proposal -- complete with Swift cameo -- below.