Taylor Swift showcased her signature shocked face once again and played the “third wheel” as two fans got engaged in front of her.

A man got down on one knee and proposed to his girlfriend at the event, which took place backstage at one of the singer’s tour concerts, and she said yes.

“They walk into the meet and greet and he says, ‘We met 5 years ago at the Red Tour’ and then….. #thirdwheel,” Swift wrote on Instagram on Friday, alongside a slideshow of photos of her witnessing the proposal.