Agency Music K Company recently dropped videos of idol groups BTS and G-Friend showing their support for the pending debut of Kim Joo Na, known for being in 'Produce 101' and being the half-sister to Kim Soo Hyun.  Soon, with her debut, those modifiers will fall off and she'll be known as just Kim Joo Na!

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BTS stated, "We hear that Kim Joo Na of 'Produce 101' is going to debut as a soloist. We truly congratulate her, and we hope that she will become a Joo Na who will provide a lot of happiness to many people just like her name."

G-Friend said, "There were so many fans awaiting the solo debut of Joo Na.  As fans who also supported Joo Na in 'Produce 101,' we look forward to her solo promotions.  Please listen often to the song of Joo Na, who will make her solo debut."

She'll be dropping "Summer Dream" on September 12.