Who are the naked Hollywood stars?Who are the naked Hollywood stars?Good grief.

A-list actresses in the buff?

Whatever is the world coming to?

When not-so-classy celebs strip off, it's considered a bit base but when a 'serious' actress does it...well, it's art, daahling.

So if you purchase yourself a copy of the annual Hollywood edition of Vanity Fair and see hectares of naked Tinseltown flesh on the cover, don't be shocked.

Looking as pale as a pint of semi-skimmed, Scarlett Johansson is lounging on the ground as if watching the telly - only starkers.

And Keira Knightley is cleverly sparing her blushes with a well-placed arm and a crafty leg. She is, however, wearing a belly button ring. Class.

The Vanity Fair coverThe Vanity Fair coverThe photo was also meant to feature Wedding Crashers star Rachel McAdams, but she lost her nerve and decided nudity wasn't for her.

So, to avoid the connotations of two naked chicks on a bed looking like lesbians, fashion designer Tom Ford made up the threesome.

"Three girls in a bed is a bedful of girls. Two girls in a bed are lesbians," Tom revealed.

"At the end of the shoot, Annie (Leibovitz, the photographer) said, 'Can you slip youself in there?'"

And so slip in he did. Openly gay Mr Ford chose to sniff Keira's ear - actually in quite a sensual way.