"Girls of Summer" is a single by American hard rock band Aerosmith. Released in 2002 as the only single from the band's 2002 greatest hits album, O, Yeah! Ultimate Aerosmith Hits, the song was written by lead singer Steven Tyler, guitarist Joe Perry and professional songwriter Marti Frederiksen in Hawaii, following the end of the Just Push Play Tour. The song, described by the band's frequent collaborator Jack Douglas as "George Harrison meets the Beach Boys", reflected the laid back atmosphere of its composition, where according to Tyler, he along with Perry and Fredericksen utilized Pro Tools and just started flailing to see which vibe would come out.