Pop star Katy Perry successfully overturned a trademark decision barring her from using her own name to sell merchandise in Australia.

Katy Perry has successfully appealed against a trademark decision over her name, against Australian fashion designer Katie Perry.

"Both women put blood, sweat and tears into developing their businesses. One became an internationally famous entertainer in the music industry, the other, a small Australian fashion designer," the appeal judges wrote.

Katy Perry has won her yearslong legal battle with an Australian designer. The verdict was delivered in an Australian court on Thursday, Nov. 21, the Sydney fashion designer by the same name confirmed to The Post.

Singer Katy Perry has successfully appealed against a trademark decision over her name, after being sued by an Australian designer who sells clothes under her birth name Katie Perry. Three appeals judges on Friday overturned a court decision last year that favoured Katie Taylor over merchandise sold by the pop star during a 2014 tour of Australia.

1 of 5 | Katy Perry attends the Baby2Baby annual gala at the Pacific Design Center on November 9. She announced the U.K. leg of her "Lifetimes" tour on Monday. Photo by Jim Ruymen/UPI | License Photo Nov. 18 (UPI) -- Katy Perry is going on tour.

Katy Perry has won an appeal over a trademark decision regarding her name after Australian designer Katie Perry sued her.

The judges ruled in favor of Perry because she’d trademarked her stage name five years before Taylor started her business and used that trademark “in good faith” during her

Katy Perry has emerged victorious in a long-running legal battle with Australian fashion designer Katie Taylor, who operates under the brand name "Katie Perry." On November 22, a panel of three appeals judges unanimously ruled in favor of the singer,