"Anna Sun" is the debut single by American rock band Walk the Moon, released on February 7, 2012.

[5] The song was written by band members Adrian Galvin, Nick Lerangis, Nicholas Petricca and Adam Reifsnyder.

[6] "Anna Sun" was written by lead vocalist Nicholas Petricca and New York-based singer/songwriter Nick Lerangis, along with the help of their 8-year-old neighbor Jake Young.

The song is named after their professor from Kenyon College (who now teaches at Duke University) and is meant to symbolize youth.

[2] James Christopher Monger, writing for AllMusic, called "Anna Sun" one of the best moments on Walk the Moon and that it "hold[s] fast to the band's talent for crafting synth-heavy, fat, and percussive dancefloor gems".

[18] Similarly, "Anna Sun" entered the Hot Rock Songs chart at number forty-six on April 14, 2012.

[20] "Anna Sun" managed to obtain some success on the Bubbling Under Hot 100 Singles chart, peaking at number eighteen on September 15, 2012.

[22] Outside the United States, the song became a minor hit on the UK Singles Chart, debuting at number eighty-two on its first week.

[26] The video includes original choreography from Kim Popa, the executive director of the local Cincinnati based dance troupe Pones Inc.[27] After meeting with the band, she decided that the vibe should be "the intangible feeling of being a kid...then maintaining that whimsy into adulthood.

[28] The video begins with a 2 and a half minute long take, shot inside the Mockbee building in the brewery district of Cincinnati.

The second part of the video consists of jump cuts between Petricca singing while directly looking at the camera and more party goers, covered in face paint, preparing for battle.