Only one signature is NOT enough for BTS' Taehyung.
While anyone usually has only one sign, Taehyung has four different autographs. It was revealed that each autograph has its own meaning. The first one is his own autograph, the one he used in most times. The second one is BTS signature, he said that this sign is the one every BTS member can use to represent the group. The third one is the official autograph he used for passport, and the last one is the autograph he used when he "turns" to TaeTae.