2AM's�Jo Kwon�holds the record as the longest-running trainee in JYP Entertainment history, and he's now celebrating his 24th birthday (25th in Korea) with JYP Nation for the 12th consecutive year!

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Jo Kwon thanked fans for their birthday wishes on his Twitter, "My 12th birthday at JYPE ..!! My birthday hat got longer than it was last year... hehehe Thank you!!!!...�I AM - Kwon Forever - LOVE YOU!!! Thank you!!!! A couple thousand mentions ..! I was surprised!!! Thank you :-) !! I will have a happy day."�

In the photos, Jo Kwon is seen keeping his tradition by wearing a birthday cone hat that gets longer each year and blowing out his candles in the practice room.

Check out how much fun Jo Kwon had at the karaoke room for his birthday party!