Fans took to Twitter to celebrate the 21st birthday of EXO-M's lead vocalist, Chen!

The singer was born on September 21, 1992 and as soon as the clock struck midnight in Korea, fans immediately began trending three different terms. These included "#HappyChenChenDay", "Happy Birthday Chen", and his Korean name "Kim Jongdae". These three terms were on the worldwide trending list for quite some time.

Happy Birthday to Chen!

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