Britney oops her way to top viral videos

LONDON (Reuters) - The public's appetite for those "Oops! ... I Did It Again!" moments involving pop princess Britney Spears shows no sign of waning as she scooped the number one celebrity viral video this year.

A clip of Spears burping and talking incoherently about her belief in time travel was viewed over 3 million times to take top spot comfortably, said ViralVideoChart.com on Monday.

Live TV footage of Spears' estranged husband Kevin Federline apparently getting a text message informing him the pop singer had filed for divorce was second with nearly 2 million hits.

Viral video is the term used to describe clips that gain huge popularity after being posted on the Internet, spreading like viruses through emails, blogs and instant messages.

ViralVideoChart.com says it scans several million blogs a day to see which clips are being talked about most and compiles a daily list of the 20 most-viewed videos.

Seinfeld co-star Michael Richards' racist outburst was third in the 2006 chart with over a million hits just four weeks after it was first posted online.

Richards sparked a public outcry for spewing a torrent of racial slurs at hecklers during his stand-up act at the Laugh Factor comedy club in Hollywood on November 17.

The incident was captured in digital camera video footage that was widely circulated on the Internet and was broadcast on TV newscasts three days later.

Actress Lindsay Lohan talking less than generously about socialite Paris Hilton was fourth, while a video of Hilton crashing a Bentley claimed fifth place.

Actress Keira Knightley's rendition of "Raindrops Keep Falling on my Head," played on her teeth, featured on the syndicated American series "The Ellen DeGeneres Show" was No. 6 just ahead of model Katie Price and husband Peter Andre's video for their debut single "A Whole New World."

Hilton makes a reappearance at No. 8 singing happy birthday to the 80-year-old founder of Playboy magazine Hugh Hefner, with a video of actress Pamela Anderson at No. 9.

Sharon Osbourne's tirade at a panty-free Rebecca Loos on British reality TV show Celebrity X-Factor rounds out the chart.