Hail the Sun is an American post-hardcore band from Chico, California. Formed in 2009. the band currently consists of lead vocalist and drummer Donovan Melero, lead guitarist Shane Gann, rhythm guitarist Aric Garcia, and bass guitarist John Stirrat. They are known for their eclectic progressive rock and math rock style, along with traditional elements of screamo and post-hardcore. They released their debut studio album, POW! Right In the Kisser! (2010), and EP, Elephantitis (2012), independently before signing to Blue Swan Records the following year. The group released their sophomore studio album, Wake, in 2014. In 2016, the band departed from the label, signing to Equal Vision Records and released their third studio album, Culture Scars on June 17, 2016, which charted at number 38 on the Billboard Top Rock Albums chart.
In 2017, the band released their second EP, Secret Wars, which was met with critical acclaim and was noted for the group's heavier and technical post-hardcore sound. They released their fourth studio album, Mental Knife, on September 28, 2018.
Hail the Sun has toured with Dance Gavin Dance, I the Mighty, Circa Survive, and Silverstein, among others. They have also performed at numerous music festivals such as Chain Fest at the Chain Reaction, South By So What?!, Horns Up Festival, and Swanfest.