A dad set out to snap a sweet photo of his daughter, but ended up capturing something much more memorable. The little girl had no idea that her photo would go viral after she posed in front of some horses.

As Time reports, the photo was first shared on Reddit. Though there’s not much context, it’s easy to guess what happened: the girl, probably with family, saw massive Clydesdale horses at a parade. She might’ve built up the courage to pet them, and her dad asked her to pose for a photo.

“Say cheese!” the photographer likely said, but what happened next made the picture unforgettable.

A hilarious Clydesdale photobomb took center stage, giving the snapshot its viral charm. Time notes the photo was posted in 2016 by a now-deleted Reddit account, and it’s unclear if The Wolf 101.5 FM was the first to share it.