aking ▁again ▁in ▁ 2 0 0 7 , ▁McC art ney ▁said : ▁God ▁Only ▁Kn ows ' ▁is ▁one ▁of ▁the ▁few ▁songs ▁that ▁reduces ▁me ▁to ▁tears ▁every ▁time ▁I ▁hear ▁it . ▁It ' s ▁really ▁just ▁a ▁love ▁song , ▁but ▁it ' s ▁br illi antly ▁done . ▁It ▁shows ▁the ▁genius ▁of ▁Brian . ▁I ' ve ▁actually ▁performed ▁it ▁with ▁him ▁and ▁I ' m ▁afraid ▁to ▁say ▁that ▁during ▁the ▁sound ▁check ▁I ▁broke ▁down . ▁It ▁was ▁just ▁too ▁much ▁to ▁stand ▁there ▁singing ▁this ▁song ▁that ▁does ▁my ▁head ▁in ▁and ▁to ▁stand ▁there ▁singing ▁it ▁with ▁Brian ." ▁Brian ▁respond ed ▁app reh ens ively ▁to ▁McC art ney ' s ▁adm iration ▁of ▁the ▁song ▁in ▁the ▁ 1 9 7 0 s : ▁" Like , ▁if ▁' G od ▁Only ▁Kn ows ' ▁is ▁the ▁greatest ▁song ▁ever ▁written , ▁then ▁I ' ll ▁never ▁write ▁anything ▁as ▁good ▁again ! ▁And ▁if ▁I ▁never ▁write ▁anything ▁as ▁good , ▁then ▁I ' m ▁finished ." ▁ ▁The ▁song ▁inspired ▁song writer ▁Mar go ▁G ury an ▁to ▁move ▁into ▁writing ▁pop ▁music . ▁She ▁said : ▁" I ▁thought ▁it ▁was ▁just ▁g orge ous . ▁I ▁bought ▁the ▁record ▁and ▁played ▁it ▁a ▁million ▁times , ▁then ▁sat ▁down ▁and ▁wrote ▁' Th ink ▁of ▁Rain '. ▁That ' s ▁really ▁how ▁I ▁started ▁writing ▁that ▁way . ▁I ▁just ▁decided ▁it ▁was ▁better ▁than ▁what