I felt very lucky to sing it, and I think it did a lot of the work for me, in a way. It did feel special to shoot. No one had heard the song yet, no one had heard me sing it… Candice had never even heard it [and] she was in tears after the proposal in the rehearsal. It got a round of applause from the crew, which doesn’t happen. It was a special episode for everybody.
— Grant Gustin on Runnin’ Home to You