Supermarket group Asda is looking to extend the "mary-kateandashley" branded range to include books, DVDs, computer games and possibly even a range of clothing for boys on the back of the range's success in the UK.
The store chain, which is owned by US parent Wal-Mart Stores Inc, launched the girls' clothing range from US "tween" queens Mary-Kate and Ashley Olsen six weeks ago - and says sales have rocketed to more than £1 million.
Asda's deputy chief operating officer, Richard Baker, told Dow Jones Newswires: "This is the start of something really big."

The 15-year-old Olsen twins have been hailed as "the most powerful young women in Hollywood" by The Hollywood Reporter magazine. Their clothing and accessory range was launched exclusively in Wal-Mart in January last year and are forecast to exceed £684 million this year.