Marian Hill is an American songwriting duo from Philadelphia, made up of production artist Jeremy Lloyd and vocalist Samantha Gongol. Their name comes from two characters in the musical the Music Man: Marian Paroo and Harold Hill. Their debut EP, Play (2013) featured improvisational jazz musician Steve Davit. In 2015, they released another EP, Sway. The New York Times published a review of the duo after the release of Play, comparing them to other well-known electronic and R&B-influenced groups. They made their television debut on The Late Late Show with James Corden in September 2015. A track that appears on both EPs, 'One Time', entered the top 40 on U.S. alternative radio in December 2015. The duo released four singles throughout 2016, leading up to their debut album; Act One.