"Love So Sweet" is a Japanese song, and the eighteenth single, by the Japanese boy band Arashi. The single was released in two editions: a regular edition containing a bonus secret track and karaoke versions of the songs released in the single, and a limited edition containing a bonus track entitled "Fight Song". With its lyrics written by Arashi and music composed by member Kazunari Ninomiya, it was created in 2006 as an image song for the group's variety show G no Arashi.