Tatsuya Ueda (上田 竜也 Ueda Tatsuya, born on October 4, 1983), is a Japanese idol, singer, and actor from the Japanese idol group KAT-TUN. Born in Kanagawa in Japan, he joined the Japanese talent agency, Johnny & Associates in 1998. In March 2006 he debuted as a member of the Japanese boy band KAT-TUN and is under Johnny & Associates management. The group's name was an acronym based on the first letter of each member's family name until the departure of Jin Akanishi in 2010, and Koki Tanaka in 2013. After Tanaka's withdrawal, Ueda took the T for Tatsuya. As of 2013, KAT-TUN stands for Kazuya KAmenashi, Junnosuke Taguchi, Tatsuya Ueda, and Yuichi Nakamaru. Ueda is very athletic, and his favorite hobbies include Boxing and running.