The 49-year-old New Zealand actor wrote on Twitter, "I like Bieber's tagging. Tag on little brother. Tag the world", Contactmusic reported.
The 19-year-old Canadian pop musician was embroiled in a graffiti dispute in Australia and the area's mayor, Tom Tate, was furious with the singer and publicly ordered him to clean up his mess.
Bieber, who is currently on tour 'Down Under', had previously found himself in trouble with the law over his 'tagging' during his South American tour after he was accused of spraying an abandoned.