The star and his entourage were escorted out a side door at the airport as fans pressed forward in the arrivals area.

“Finally got to New Zealand last night. The airport was crazy. Not happy that someone stole my hat and knocked down my mama. Come on people,” Bieber wrote on his Twitter account.

“Want to be able to sign and take pics and meet my fans, but if you are all pushing security wont let me. Let’s keep it safe and have fun.”

On Wednesday he performed six songs at a private concert at an Auckland school and bungy-jumped from the Auckland Harbour Bridge.

Australian police on Monday shut down a concert by Bieber over crowd safety fears after young fans were injured in surges hours before the start of the free event on the Sydney Harbour foreshore.

His debut single “One Time” was a huge hit last year and his album “My World 2.0″ has spent four weeks at the top of the US charts since its release last month.

Last week Usher bumped his young protégé Justin Bieber from the top spot on the Billboard album chart, and this week Mr. Bieber returns the favor. “My World 2.0” (Island) by the 16-year-old Mr. Bieber — seen on “Saturday Night Live” with Tina Fey as host last week — returned to No. 1 with 102,000 sales, according to Nielsen SoundScan, and Usher’s “Raymond v Raymond” (Jive) fell one spot to No. 2, with 92,000. Slash, the guitarist once of Guns N’ Roses, is at No. 3 with his new, self-titled album, released by EMI, which sold just more than 60,000 copies in its first week out. The country band Lady Antebellum rose one spot to No. 4 with its album “Need You Now” (Capitol Nashville), which sold just fewer than 60,000 copies.

Down the chart, Madonna opened at No. 10 with her live album “Sticky & Sweet Tour” (Warner Brothers), which sold 28,000; it is her 19th album to reach the Top 10. Sharon Jones and the Dap-Kings have officially become Brooklyn’s biggest retro-soul band: their latest, “I Learned the Hard Way” , sold 23,000 copies in its first week out to land at No. 15, right between releases by Alan Jackson and Kesha.