Pop superstar Michael Jackson swept into Japan on Thursday, welcomed by hordes of screaming fans at the airport calling out "Mai-keru, Mai-keru," to end a 15-month world concert tour that may be his last. Jackson, 30, began his world tour in Tokyo in September last year, and has selected the city for his farewell performances. About 450,000 people will see the nine sold-out shows, which begin on Friday.