Complex sentence: Its lead single, "Backroad Song", was released independently to radio on March 24,2015 but then was re-released to radio on October 5,2015 after Smith's signing with the label.
Split into simpler sentences: Its lead single, "Backroad Song", was released independently to radio on March 24,2015. It was then re-released to radio on October 5,2015 after Smith's signing with the label.