Formed in 2003, the musical style of Moon Safari is characterised by a symphonic rock sound with five-part vocal harmonies. Simon Åkesson and Petter Sandström each perform lead vocals, with both of their voices often providing solo vocal melodies. However, all six members contribute to the vocal aspect of their music. Many of their melodies are sung as full vocal harmonies, and a number of their songs feature a cappella sections. Major keys comprise the majority of their music, with minor keys often featured only in specific sections of their songs. They list their influences as The Beatles, and notable progressive rock bands Genesis, Marillion, IQ, and Yes, among others.