Justin Bieber sings for fan's birthday on Palm Beach

Justin Bieber to woo Aussie fans / AP
POP phenomenon Justin Bieber delighted a Sydney fan at Palm Beach today in a chance meeting when he sang to her for her birthday - and Tweeted about it.

At a well covered-up visit to Palm Beach in Sydney's North, where hit soap Home and Away is filmed, Bieber Tweeted that he had enjoyed meeting the fan and hoped she had a great birthday.

"Happy b'day to