Singer Taylor Swift has been slapped with a trademark infringement lawsuit by bosses at a California apparel company.
Executives at Lucky 13 have accused the singer of using the company's federally registered logos to promote her own clothing line.
In a suit filed in California, Lucky 13 bosses claim they have contacted the Love Story songwriter's camp several times to try to resolve the issue but all efforts have proven unsuccessful.
Owner Robert Kloetzly is now asking for Swift's merchandising site to be shut down and for all the profits made or the damages to his company - whichever is greater.
Swift has often talked about the significance of the number 13, telling MTV.com in 2009, "I paint (it) on my hand before every show because 13 is my lucky number- for a lot of reasons. It's really weird.