Pop star Gwen Stefani is reportedly suing apparel retailer Forever 21 for copying trademarks from her Harajuku Lovers clothing line.

In papers filed in Los Angeles Federal Court, representatives for Harajuku accused Forever 21 of selling T-shirts with a pattern allegedly similar to Harajuku's heart logo and changing the word 'Harajuku' to 'Forever' and 'Lovers' to 'Love'.