the band signed to big machine records in 2015 and released its sixteenth single, "homegrown", in january. the song, co-produced by jay joyce, was the lead single to an album, titled "jekyll + hyde", which was released on april 28, 2015. despite being a country album, jekyll + hyde features prominent styles from other genres in several of its tracks including rock (heavy is the head), edm (beautiful drug ), celtic (remedy), reggae (castaway) and traditional pop/jazz (mango tree).