Since Forever cover Owl City’s “Fireflies” According to Since Forever…Sunday means cover song. Yesterday, they covered Owl City’s “Fireflies” and although I’m a huge fan of the original, I thought they did a pretty good job. Take a listen and let us know how you think they did. Show Comments Post a Comment Cancel replyYour email address will not be published. Required fields are marked *Your Message Name * Email * Website Save my name, email, and website in this browser for the next time I comment.