Austin,amusicianandsingerandAlly,asongwriter,arepairedupunexpectedlybutrelyontheirtwobestfriends,TrishandDex,tokeepthingstogether.AustinandDexdecidetorecordoneofAlly'ssongswithoutherknowingandpostitontheinternet.Austinbecomesaninstantsensation.AustinbegsAllytoexposeherselfasthewriterandwritehimanothersong,butinst..bb