Canadian pop sensation Justin Bieber (16) performed for the first time for 1000 of his fans in Japan yesterday. He’s here in support of his album “My World 2.0.” which goes on sale in Japan on May 19. He played six songs, including his hit “Baby.” Tweeting about his initial impressions of the Big Mikan, he wrote “Exclusive kicks everywhere..great food..and heated toilet seats.” Showing a more adventurous side than some visitors, he tweeted, “Just had sushi dinner here in Japan. Food was incredible, but I didn’t know half the stuff I was eating.” After Japan, Bieber will head off for appearances in Australia and New Zealand.