After making a splash with their debut, "Mr. Ambiguous", the talented ladies of MAMAMOO are making their return with a new digital single!  However, it appears there is a bit of a delay as the girls pushed back the release date one day from November 20 to 21.

They wrote, "Hello~  This is MAMAMOO!!  Because of the second half of work on the MV, the release date of November 20 is now moved back one day to November 21.. We did this in order to meet everybody with an even better image, so you understand, right?^^  Let's see each other next week!! ^^" and attached a new teaser image to announce the title of their new single.

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The ladies seem to be going for a classier and more mature vibe suiting the autumn season as they dressed themselves in feminine white suits.  Stay tuned for the release of 'Piano Man' on the 21st!