Ailee's international fans are quite impressive as they were able to capture a momentous event on their idol's fame.

Ailee garnered 400,000 Twitter followers already, and her fans took a screenshot of her Twitter account with the exact number.

They spread the goods news immediately. 

Meanwhile, Ailee will be performing in Indonesia for 'Eru Concert in Jakarta hide & Seek' which is scheduled on May 17th at 7:00PM at Lapangan D Sanayan.

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SOURCE: @AngelicAilee