Beyoncé Knowles and Sir Philip Green have are going into business together, it has been revealed.
The duo will launch a new joint venture called Parkwood Topshop Athletic, which will produce "athletic street-wear".
The brand, set to launch later this year, will feature clothing, footwear and accessories across dance, fitness and sportswear.
"We have been looking at this category as fashion-inspired fitness develops, and know that this is right in our customers' heartland," said Sir Philip.
"Creating a partnership with Beyoncé, one of the most hard-working and talented people in the world, who spends many hours of her life dancing, rehearsing and training, is a unique opportunity to develop this category."
Beyoncé commented: "I could not think of a better partner as I continue to grow the Parkwood business. I have always loved Topshop for their fashion credentials and forward thinking."
Beyoncé launched House of Deréon, a women's fashion range, with her mother Tina in 2005 and then founded Parkwood Entertainment in 2008.