Pop star Britney Spears topped the 46th Annual Worst Dressed Women list released Tuesday by style watcher Mr. Blackwell.

"When it comes to Couture Chaos, this Tacky Terror should take a bow," Blackwell said of the new mom. "From the 'Princess of Pop' to the ultimate 'Fashion Flop!,'" E! Online reported.

No. 2 was teen fashionista Mary-Kate Olsen, whose style was described as "Bag Lady rags that look depressingly decayed -- forget the 'accessories' and buy some Raid!"

Singer Jessica Simpson was described as "a cut-rate Rapunzel," Anna Nicole Smith as "Queen Kong" and Paris Hilton -- "Hot? I think not."

Blackwell condemned "Desperate Housewives" star Eva Longoria for her "garish taste," teen actress/singer Lindsay Lohan was called a "fashion fright" and singer Mariah Carey was blasted for committing "fashion Hari-Carey."

Favorite Blackwell target Renee Zellweger was chastised for "running the gamut from Kewpi Doll Dreck to Red Carpet Wreck."

"Just take your pick," Blackwell chided the star. "She looks like a painted pumpkin -- on a pogo stick!"