Recently, SM Entertainment revealed the two idols are collaborating for a release on 'SM Station'. On October 2, Doyoung and Kim Se Jung greeted fans in a video and shared that their song is coming on the 13th. 

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Check out the video message from the two idols below and watch out for "Star Blossom" coming soon!

[#STATION] #NCT(@NCTsmtown) #DOYOUNG X SEJEONG(gugudan) '#별빛이피면 (#StarBlossom)' 2017.10.13 6PM(KST) pic.twitter.com/Cr02OYJLVR

— SMTOWN GLOBAL (@SMTOWNGLOBAL) October 2, 2017