Red Bull on Monday confirmed reports world champion Sebastian Vettel has signed up with the team through 2014.
Also announced on Monday was that Lewis Hamilton will be managed by Simon Fuller's XIX Entertainment company.
XIX also handles the famous British footballer David Beckham and his Spice Girl wife Victoria.
McLaren driver Hamilton sacked his former manager, father Anthony Hamilton, early last year.
In a statement, 26-year-old Hamilton said Fuller "shared my ambitions for the longer term".