On October 9, Monday Kiz's agency stated, "Monday Kiz member Lee Jin Sung will be releasing a new digital single 'Autumn Greeting' on October 14."

Debuting back in 2005, Monday Kiz is set to demonstrate their powerful vocals celebrating their 13th anniversary this year with single 'Autumn Greeting'.

The ballad group will also be holding a concert next month after 4 years as attendees will get to see an exclusive performance of 'Autumn Greeting' live.

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Furthermore, Monday Kiz is planning to release MV teasers and other related content in preparing for their comeback.