Super-cool Beyonce Knowles poses up a storm as she shows off her slim legs in form-fitting mustard leather trousers

She became a mother earlier this year when she welcomed baby daughter Blue Ivy into the world in January. 

But Beyonce Knowles proved she hasn't let anything slip in the style stakes as she posed up a storm in a super-cool ensemble.

Posting a brand new set of snaps on her official iambeyonce Tumblr page, the 31-year-old singer showed off her slim figure in a pair of form-fitting leather trousers.