Victoria BeckhamVictoria BeckhamWhat's wrong with us ordinary plebeians?

Why doesn't Victoria Beckham want to be best mates with us?

We love a bit of shopping... sure it might be at Primark and H&M but we can still purchase for Britain and we'd appreciate designer gifts.

However, for all our desperation, it appears Posh has found a new celeb bezzie mate - and she's already planning an A-list holiday with her.

Posh met Sienna Miller through Elton John's partner, David Furnish, whilst they were all bigging up British fashion in New York at the beginning of May.

They got chatting at a roast lunch bash - cooked by Jamie Oliver but thrown by Burberry - and the next day hung out at the Anglomania Ball together.

Sienna MillerSienna MillerWhen asked about her new pal, Posh said: "I love her. I just met her for the first time yesterday. She is lovely!"

According to Scotland's Daily Record newspaper, Victoria introduced herself to Sienna by saying:

"It's nice to meet someone who's almost as unpopular as me."

The paper quotes a source as saying: "You can certainly say it broke the ice between them. After that they spent a whole evening together gossiping like old mates."

The two glamour pusses swapped numbers and have even met up since the party... now they're planning a break away together.

Gutted.