Shuuji to Akira (Shuuji and Akira) is a Johnny's Entertainment special unit with members Kamenashi Kazuya (KAT-TUN) and Yamashita Tomohisa. The single, Seishun Amigo quickly became the best selling single of the year on the Oricon Yearly Single Rankings for 2005, partly due to the popularity of the dorama and Kamenashi and Yamashita. It has since sold over 1.5 million copies.