Rihanna has signed up as contributing creative director of Stance.

The 27-year-old singer has teamed up with the US-based sock brand and released two limited-edition sets of over-the-knee and crew socks emblazoned with a print entitled Murder Rih Wrote.

Only 1,500 sets have been produced, all of which are individually numbered, and Rihanna is ''happy'' to be working on the project.

The 'Umbrella' hitmaker said: ''I've had a great relationship with Stance for a long time and ‎I am happy to be working with them on such a fun and creative project. This is an exciting new venture.''

The brand will be stocked on Asos from September 1, which is when the full extent of the creative partnership will be revealed.

Rihanna is currently the creative director for sportswear label Puma and enjoyed a design partnership with high street chain River Island.

The 'Diamonds' hitmaker is also due to launch her own fashion label $CHOOL KILLS soon, and is planning on making fashion her ''focus'' rather than music.

The 'SOS' singer's company Roraj Trade LLC registered and trademarked '$CHOOL KILLS' in New York under the categories 'leather products' and 'clothing products' in May.

A source previously said: ''$CHOOL KILLS will be an accessories range covering everything from tote bags to purses and, later on, fashion.

''She still loves the music and it's what launched her, but this is her focus right now.''