He will be on-air tomorrow early morning on Fuji TV to sing 「HEAT」. It will be his 1st live performance of 「HEAT」 (not pre-recorded).
5000 people congregated at the handshake session (Jul 3)! Hyun Joong's Live Performance of song produced by B'z
Source: Fuji TV Non-Stop HomePage, http://www.fujitv.co.jp/b_hp/nonstop/