Woollim Entertainment recently announced that ballad singer Joo is making a long-awaited comeback. The teasing for her return soon followed and yesterday, Joo greeted fans with an MV teaser. 

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Fans can find a bit more about Joo's new track with the preview, where her beautiful voice sings a part of ''Late in the Morning''. 

Listen to it in the clip above and watch out for the full release on May 26.