Australian Mark Webber will drive for Red Bull alongside David Coulthard in the 2007 Formula 1 World Championship.
Webber currently drives for the off-form Williams squad.
"It's fantastic to be joining Red Bull Racing," he said Webber on Monday. "It's clear that the team is very hungry for long-term success. It has a very talented group of personnel and there seems to be a real sense of team spirit and unity.
“I believe I'm joining the team at exactly the right time for success in the future."
Red Bull’s sporting director Christian Horner said Webber was chosen for several “straightforward reasons.”
“One, he obviously has undoubted speed and ability, and two, he appears to have the determination and motivation needed to succeed."
It's uncertain where Christian Klien, whom Webber replaces, will go. The Austrian is contracted to Red Bull until the end of 2006.