Britney Spears launched a bitchy attack of 'Atonement' star Keira Knightley last night after the actresses' comments last week about celebrities that don't wear underwear.
Knightley told reporters: "The whole celebrity thing is not magic. They are just real people proving they are sluttier than everybody else because they don't wear any knickers", which, while not making a direct reference to Spears, was, of course, taken by many to mean the troubled popstar and her knickerless cohorts.
So much so Spears has reportedly responding, saying: "Who's Keira Knightley? I guess she must need the publicity". You tell her Britney. Though but some pants on first, if you'd be so kind.