Shin Yamada has joined Celtic from Kawasaki Frontale on a four-year-deal.
The Japan striker, 25, has scored 32 goals in 121 club appearances, featuring prominently in the J-League since 2023.
“He is a strong player who can score goals and create goals for others and I think he is someone who can definitely add an important dimension to our forward line,” manager Brendan Rodgers told club media.
“I know he is really keen to make his mark here in European football and deliver for Celtic and I think he is someone who has the power, athleticism and intensity in his play to do really well for us.”