Mary-Kate and Ashley Olsen are being accused of ripping off other designer labels with their high-end fashion line, The Row.

Celebrity stylist, Lysa Cooper, who has styled Beyonce, Rihanna, and Shakira revealed to Vogue Italia that the 27-year old twins are thieves of creativity, according to the Daily Mail.

Cooper told Vogue that the actresses turned designers have "the only [celebrity line] that's any good." This is only because the have hired designers to do the grunt work for them.

She went on to say that "They [the twins] 'yay' or 'nay' [the concepts]."

"And they are the best line at ripping off other lines that I've ever seen."

Cooper alleges that Mary-Kate and Ashley have stolen ideas from Rick Owens and Ann Demeulemeester. However, she admitted that although she does not purchase things from their fashion line they are good at stealing and perfecting ideas from other fashion lines.

[To see items from Mary-Kate and Ashley Olsen's label, The Row, click HERE]

The famous twins launched the label, The Row in 2006 and it has since become popular among celebrities and fashionistas alike.

According to the Daily Mail, just last year the women collaborated with artist Damien Hirst to make a crocodile skin backpack that cost $55,000. Aside from the ridiculous price tags the reception of the label has been mostly positive.

A year ago, the Council of Fashion Designers of America named the twins Womenswear Designers of 2012.

Along with The Row Mary-Kate and Ashley Olsen have two other labels, Elizabeth & James and Olsenboye.

Celebrity fans of the label, The Row include Jennifer Lopez, Vanessa Hudgens, Kate Hudson, and Rachel Bilson.

Seeing as The Row has simple and basic items do you believe Mary-Kate and Ashley Olsen have ripped off other fashion designers? Leave us a comment below.