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〈Purpose〉前導片短預告①
http://bit.ly/2Mb25Zg
https://www.facebook.com/girlsgeneration/videos/422937451966173
https://twitter.com/GirlsGeneration/status/1182672205047652353
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〈Purpose〉前導片短預告②
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https://www.facebook.com/girlsgeneration/videos/407478483481991
https://twitter.com/GirlsGeneration/status/1183034592690888705
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〈Purpose〉前導片短預告③
http://bit.ly/35XHujd
https://www.facebook.com/girlsgeneration/videos/2571775849554534/
https://twitter.com/GirlsGeneration/status/1186297162176446469
https://www.instagram.com/p/B34nevNA0LO/
〈Purpose〉串流音樂平台 2019.10.28. 6PM (KST) 公開
〈Purpose〉實體專輯發售 2019.10.28. 發售