"Anna Sun" is a song by the American rock band Walk the Moon, released in 2010. It is known for its upbeat tempo and catchy melody, which helped the band gain popularity. The song features themes of youth, freedom, and the joy of summer. The track is part of the band's self-titled debut album, which showcases their unique blend of pop and rock influences. Walk the Moon later achieved greater fame with their hit single "Shut Up and Dance" in 2014, but "Anna Sun" remains a fan favorite for its infectious energy and relatable lyrics.