ASTRO’s Moonbin And Billlie’s Moon Sua Prove They’re An Iconic Sibling Duo In A Collaboration Stage

Moonbin’s reaction to Moon Sua’s aegyo was hysterical.

Fans couldn’t have been more excited to see that ASTRO‘s Moonbin and Billlie‘s Moon Sua were able to collaborate on a special stage for this week’s Music Bank. The adorable sibling duo performed an incredible cover of Baek Ji Young‘s “Candy In My Ears.”

Fans couldn’t get over the incredible vocal skills both idols showed.

And realized that with both Moonbin and Moon Sua being such incredible performers, they had no choice but to stan both idols.

But fans were especially fond of how playfully both idols were relatable siblings on stage. With Moonbin playfully reacting to Moon Sua’s aegyo

And taking the chance to tease her during the stage.

Fans were also emotional at how meaningful the stage must have been for both idols, since Moon Sua has often talked about wanting to perform with her brother.

And Moonbin couldn’t stop smiling proudly during the performance.

Likely the stage was so meaningful because Moon Sua has talked about her brother’s constant support of her trying to achieve her dream of becoming an idol, no matter the hardships she endured.

Hopefully, fans will be able to see many more interactions in the future.

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You can watch the performance here.