He had recently tested positive for marijuana and had admitted to the charges. He just uploaded a letter of apology. The letter reads:
This is Choi Seung Hyun (T.O.P's real name).
First of all, I want to apologize with all my heart for disappointing many and causing a controversy through my fault.
I am too embarrassed of myself even to apologize in person... I do not have any excuses and I have many regrets. I am now cautiously writing while I am afraid of everything...
I believe I should be rightly punished for hurting the members, the label, the public, the fans who cherished me, and my family in a way that cannot be fixed. My heart hurts, and I am very disappointed in myself.
I will look back on myself thousands of times and reflect and reflect and think on my actions...
I will not make the same irresponsible mistakes again.
I apologize once again for not being able to go apologize personally one on one to everyone, and I will reflect more deeply.
I am very embarrassed of myself.