AceShowbiz - Justin Bieber is giving fans the chance to meet him backstage at his upcoming concert in Tokyo, Japan as part of a charity auction. The teenage pop star recently announced plans to press ahead with his dates in the country despite fears of increased radiation levels following the March earthquake and tsunami disaster, which caused severe damage to a nuclear reactor in Fukushima.

He is now using his trip to the Far East to raise money for the Pencils of Promise organization, which helps fund schools in the poorest parts of the world, by auctioning off a meet-and-greet session with four fans at his show at The Budakan venue in Tokyo on May 19.

The Charitybuzz.com auction ends on May 12.

In another news related to celebrity auction, Colin Firth, Hugh Jackman, Sir Ian McKellen and Geoffrey Rush are raising money for two schools badly damaged in New Zealand's devastating earthquake in February.

More than 160 people died in the 6.3-magnitude tremor, which hit the city on February 22, causing considerable damage to Christchurch schools Shirley Primary and Avonside Girls' High. Now stars including Russell Crowe, Guy Pearce, Kylie Minogue, Michael Buble and Donald Trump will help raise funds to rebuild the facilities by auctioning off one-of-a-kind collectibles and gifts for the Stars 4 Kids campaign.

"The King's Speech" co-stars Firth and Rush have contributed autographed DVDs, while Australian pop star Minogue has offered up signed memorabilia. Jackman is giving away a storyboard used for "X-Men Origins: Wolverine" and fans can also bid on a South Sydney Rabbitohs rugby cap from Crowe.

The Stars 4 Kids auctions will begin on New Zealand website Trade Me on May 16 and 23.

In Stateside, actress Teri Hatcher has teamed up with the Grains Food Foundation to help put an end to childhood hunger. The "Desperate Housewives" star is urging fans to get creative by designing a piece of artwork on a digital slice of bread in the name of charity.

During an appearance on U.S. talk show "The View" on Tuesday, May 10, she said, "You can go to this website, BreadArtProject.com, and you can create a piece of toast. And for every person that creates a piece of toast, Grains Food Foundation donates $1 (GBP0.65) to Share Our Strength, which is a charity dedicated to ending childhood hunger by 2015."

"One in four children still, in America, go hungry. It is outrageous. They are getting the message out that breads and grains are nutritious and full of fortifying minerals that people need, so it's a really great thing."