RX David Beckham & Victoria Beckham may 05David and Victoria BeckhamDavid and Victoria Beckham have been offered their biggest sponsorship deal yet - for L'Oreal hair products.

They would be the first couple to front the campaign - famous for the "because you're worth it" slogan and would be seen on both TV and billboards.

The deal could be worth tens of millions of pounds.

"L'Oreal are one of the biggest cosmetics firms in the world, while David and Victoria are the biggest celebrity couple in the world, so it makes perfect sense for them to join forces," a source told The Sun.

Previous celebrities who have also said they're worth it include Natalie Imbruglia, footballer David Ginola, and actors Andie MacDowell and Ben Affleck.

Becks has previously fronted high-profile campaigns for brands such as Gillette, Police sunglasses and Brylcreem hair products.

The couple are currently holidaying in St Tropez.