And the best-dressed celeb is...

People magazine's annual best- and worst- dressed issue hits newsstands on Friday featuring numerous Hollywood stars, all given a nickname to describe their taste in couture.

Beyonce, 26, was dubbed "The Showstopper," while actress Cameron Diaz walked into the top 10 as "The Legs," and actress Katie Holmes, who is married to Tom Cruise, graced the list as "The Classic."

"Beyonce just looks amazing every time she goes out," assistant managing editor Cynthia Sanz told Reuters. "She likes to show off her curves and she is very glamorous."

Beyonce has her own fashion line, "House of Dereon," that mixes hip hop influences with feminine touches like lace and ruffles that she launched with her mother, stylist Tina Knowles, in 2004.

Last year former "Friends" actress Jennifer Aniston topped the list after a reader's vote, but this year the magazine did not seek readers' input. Instead, the magazine's editors drew up the list without giving the 10 winners rankings.

Other women in the top 10 included Penelope Cruz, Jessica Biel, Drew Barrymore, Jennifer Lopez, Reese Witherspoon, Gwen Stefani and Ali Larter.

For the men last year, singer Justin Timberlake was named "Trendiest," and praise went to British soccer star David Beckham, who recently moved with wife Victoria to Los Angeles.

This year Beckham again made the list, alongside Terrence Howard, Johnny Depp, Brad Pitt and George Clooney.

Worst style moments
But there were also the worst fashions of the year as People's editors took issue with celebrities' sense of style.

Spears' decision to shave her head after a spree of partying and stints in rehab following her collapsed marriage put her at the top of the list of worst style moments.

The award comes just days after the former pop princess, who is trying to stage a comeback, drew howls from critics for her performance at the MTV Video Music Awards where her outfit resembled that of a stripper and she barely danced.

"She's had a bad year with shaving her head and all her bad fashion choices that followed that – the wigs, the hats," said Sanz. "She really seems to be having a meltdown."

Also among the worst styles were "American Idol" contestant Sanjaya piling his hair high for the hit TV talent show, and Cameron Diaz offending Peruvians with her handbag that had a political slogan of Chinese Communist leader Mao Zedong.

In a special "British Accent" section, People paid tribute to British celebrities taking America by storm, recognizing Victoria Beckham, model Kate Moss, singer Lily Allen, Prince William's girlfriend Kate Middleton and actress Emma Watson.

"It has been a big year for the Brits with a lot of influence coming over here," said Sanz. "You can't help but look at what the Beckhams are doing and wearing, but you are not really sure why."