Jun Matsumoto (松本潤, Matsumoto Jun?, born August 30, 1983), often called MatsuJun, is a Japanese idol, singer, actor, television personality and radio host. He is best known for being the youngest member of the popular boy band Arashi. Since the group's debut in 1999, it has achieved 20 number one singles, 6 number one studio albums, 1 number one greatest hits compilation album and has sold 9.9 million records in Japan alone to date.

Matsumoto is also an award-winning actor and is primarily known for his roles in the Hana Yori Dango series, the first season of Gokusen, Bambino!, Kimi wa Pet and the third season of Kinda'ichi Shōnen no Jikenbo.

Source: Wikipedia