Williams have confirmed Rubens Barrichello and Nico Hulkenberg will be their driver line-up for the 2010 Formula One season.
The news has been widely anticipated for several weeks, with the duo replacing Nico Rosberg - set to take up Barrichello's seat at Brawn GP - and Kazuki Nakajima.
Barrichello is the most experienced driver in Formula One history, having made 284 starts, while Hulkenberg is a rising star, who this year won the GP2 Series championship.
Team principal Frank Williams said: "Rubens needs no introduction.
"He is not only the most experienced driver in Formula One but a passionate and talented driver who fought hard for the championship this year.
"Nico won the GP2 championship this season as a rookie and has previously won the F3 Euroseries, Formula Master, A1 GP and Formula BMW Germany."
Williams added: "Nico Rosberg and Kazuki remain our drivers until the end of 2009 and I would like to take this opportunity to thank them for their contribution to the team.
"Nico and Kazuki have represented Williams and our partners with dedication, discipline and skill and we wish them every success with their future endeavours."