Summary:
Hollywood stars were in attendance for the US Grand Prix as the battle for the world title continued.

Full article:
A host of famous faces - including Pamela Anderson, Keanu Reeves and Matt Le Blanc - were in attendance for the the United States Grand Prix as Mercedes duo Nico Rosberg and Lewis Hamilton went head to head once again. Former Baywatch star Anderson visited the Infiniti Red Bull Racing team with her husband Rick Salomon in the build-up to the race. Keanu Reeves, who starred in Speed and the Matrix, met Red Bull driving stars Sebastian Vettel and Daniel Ricciardo. Hamilton has built up a championship lead of 17 points but starts behind Rosberg who impressively took pole in qualifying on Saturday. VIDEO Scroll down to watch Hamilton closes in on title . Former Baywatch star Pamela Anderson watches the action unfold from the Infiniti Red Bull Racing pit . Hollywood actor Keanu Reeves poses with Red Bull drivers Sebastian Vettel (right) and Daniel Ricciardo . Actor Matt Le Blanc, who played Joey in the hit TV sitcom 'Friends', arrives for the Formula One Grand Prix . Ricciardo poses with his girlfriend Lolo Jones, an American track and field and bobsled athlete, before the race . VIDEO Hamilton closes in on title .