Rounding out the rest of that unfortunate bunch are perennials Christina Aguilera, Mariah Carey, who he dubs the "Queen of Catastrophic Chic", Paula Abdul, Sharon Stone, Tori Spelling and Grey’s Anatomy actress Sandra Oh.

Not all actresses got a tongue-lashing. As well as the Worst Dressed, Blackwell also salutes the "Fabulous Fashion Independents". Britain’s own Helen Mirren and Kate Winslet managed to secure that honour, alongside Angelina Jolie.

Britney and Kevin ’share’ children - Jan 6 2007
Britney Spears and Kevin Federline have agreed to share custody of their two young children in January, after the pop star takes them with her to Miami for a week, according to court papers filed.

Spears, 25, was permitted to have 15-month-old Sean Preston Federline and four-month-old Jayden James Federline with her in Florida until next Thursday.

After that, Federline will be allowed to visit the children at Spears’ home from noon to 4pm on Mondays, Wednesdays and Fridays.

The stipulated agreement that the estranged couple signed on Thursday says Spears will use her "best efforts to ensure that no third party visiting the home" interferes with Federline’s time with the children.

The Superior Court document said Federline wants only Spears, her assistant, the children’s nanny and other household staff to be allowed in the home during his visits, but the couple had not reached agreement on that request.

Spears filed for divorce from Federline in November after two years of marriage, citing irreconcilable differences.

The 28-year-old former backup dancer and aspiring rapper counter-filed, seeking financial support and custody of the children.

Britney’s ’spa’ break - Jan 3 2007
Partied-out Britney Spears has reportedly kicked off her New Year by checking into an exclusive spa.

But US reports have questioned whether she is actually seeking more serious treatment in light of her recent headline-grabbing behaviour.

Britters checked into Sanctuary, an Arizona spa, "for some R&R" on New Year’s Day, according to Life & Style magazine.

While she appears to be making good on her New Year’s resolution "just to take care of me more," the magazine claims that her well-documented bout of partying in recent weeks may have called for a different kind of break.

"With these celebrities, ’exhaustion’ sometimes means something else and a little rest at a spa sometimes actually translates into something a little more serious," a source told the magazine.

The singer’s rep, who insisted that the pop tart simply fell asleep in a La Vegas club on New Year’s Eve after quaffing champagne with fellow revellers, could not be reached for comment.

Britney gets thumbs-down - Dec 30 2006
Britney Spears has been voted the worst celebrity role model of the year.

Americans were asked in an AP-AOL News poll to name the villains and heroes of the year, and Brit beat out Paris Hilton for the ’worst’ honours in the showbiz world.

When asked to choose from a list of names, nearly three in 10 adults bestowed the honour of worst celebrity of the year on Britters.

The 25-year-old mum-of-two has been a regular on the party circuit since filing for divorce from wannabe rapper Kevin Federline, her husband of two years, earlier this year.

Second-worst celebrity billing went to socialite Paris Hilton, who took 18% of the vote.