Emarosa (/ɛməˈroʊsə/ EM-ə-ROH-sə) is an American alternative rock band, and former post-hardcore band, from Lexington, Kentucky. The band currently consists of founding member and lead guitarist ER White, as well as lead vocalist Bradley Walden, bass guitarist Robert Joffred, and rhythm guitarist Matthew Marcellus. Upon forming in 2006, they released one extended play (EP) in 2007, titled This Is Your Way Out, and shortly after, the group underwent significant line-up and sound changes, dropping their metalcore influence and leaning towards a more rock sound. The band released their debut studio album, Relativity (2008), which featured vocalist Jonny Craig and rhythm guitarist Jonas Ladekjaer. Their eponymous second album was released in June 2010, to critical acclaim, and was Craig's final album with the group. Following Craig's departure, he was replaced by vocalist Bradley Walden. They released their third album, Versus, on September 9, 2014, which peaked at No. 61 in the Billboard 200. The band signed to Hopeless Records and released their fourth and fifth studio albums, 131 (2016) and Peach Club (2019). The group has undergone several line-up changes throughout its career, with lead guitarist ER White being the sole remaining founding member, and has gravitated towards a more pop rock sound, departing from their original post-hardcore and hard rock sound.