Jessica Biel is the most "dangerous celebrity" on the internet. According to security technology company McAfee Inc, online searches for the 27-year-old actress - who is dating Justin Timberlake - are more likely to spread computer viruses than any other star.

The company - who last year found Brad Pitt to be the most "dangerous" online celebrity - said there was a one-in-five chance that looking for information, wallpapers, images and videos of the "Easy Virtue" star would lead users to a website designed to cause damage.

Some of fashion's biggest designers had their latest runway choices make a splash at the "Teen Choice Awards" this weekend on young Hollywood's biggest stars. Among them were Louis Vuitton, Christian Dior, and Marc Jacobs.

Leighton Meester picked up an award for her role on "Gossip Girl" and is picking up votes for Best Dressed of the night with her black and white striped Louis Vuitton dress. She paired the chic mini, from his Resort 2010 collection, with a pair of bright red Brian Atwood heels.