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Justin Bieber has been revealed as the most searched-for celebrity of 2011.

The 17-year-old topped the chart put together by Bing, which monitored billions of search queries throughout the year.

The singer beat last year's winner Kim Kardashian, who came second. Jennifer Aniston, Lindsay Lohan and Jennifer Lopez completed the top five.

Bieber also topped the list of most searched-for musicians, but he was the only male artist in the top 10.

Other singers in the chart include Katy Perry, Lady Gaga, Beyonce, Nicki Minaj and Rihanna.

The Royal Wedding, the release of the final Harry Potter film and Beyonce's pregnancy were among the most searched celebrity events of 2011.

Maria Sharapova, Tiger Woods and Serena Williams were the sports stars with the highest number of online searches.

AOL has also announced its own web searches list, which was topped by Charlie Sheen.

The actor left the sitcom Two And A Half Men at the start of the year after a well-publicised fall-out with the show's producer.

Lindsay Lohan and Amy Winehouse also featured in AOL's top 10.

Searches for Winehouse increased after the singer died at her home in Camden in July.

Katie Price was the UK's most searched-for celebrity of the year on Yahoo!, beating last year's winner Cheryl Cole.

Price split from husband Alex Reid in January before going on to release two books and launch her own magazine later in the year.

Web searches for Cole remained high in 2011 after the singer was dropped from the judging panel on The X Factor USA.

They were joined in Yahoo's top five by Kate and Pippa Middleton and former Big Brother contestant Imogen Thomas.

But the most searched-for term overall on Yahoo! was FTSE, as the global financial crisis continued to dominate headlines in 2011.