Justin Bieber's b-day request

Los Angeles - Justin Bieber is asking fans to donate to charity to celebrate his 17th birthday.

The Baby hitmaker has implored his fans to give $17 to Charity: Water, in order to raise $17 000 for clean water in developing countries.

Charity: Water is Justin Bieber's chosen charity organisation.

Writing on his Charity: Water page, he said: "Together, we've made a big difference for many causes. Did you know that about 4 500 kids die each day from waterborne disease? By building clean water projects for villages that need them, we can prevent this! I want to make my birthday matter this year - let's make it so more kids can grow up to have a 17th birthday like me. Join me to make a change.

"I'm really so grateful for my family, friends and fans - and I believe we can do something big to help bring clean water to people in need. Even if you don't have $17 to give I just ask you to go out in your community and try and make a positive difference. Even the smallest act of kindness can go a long way. Thanks and God Bless!"

Last night Justin stepped out in public for the first time with Selena Gomez, who he is reportedly dating.

The pair - who were spotted in a photo booth kissing and cuddling at the Vanity Fair Oscars after-party - even matched their outfits for the occasion, with 18-year-old Selena in a floor-length red dress while Justin wore a suit with a red pocket handkerchief.

See a video of their kiss here.