RiRi working out to stay active

London, June 30 (ANI): Rihanna, who has one of the most admired bodies in the world, has to work hard to maintain her trim figure.

The star was spotted heading for a tough workout at a London gym at 10pm, after having been up until 5am the same day filming her new TV show.

The 24-year-old singer wore black Adidas jogging bottoms, a Brooklyn baseball hat and pricey Nike Air Yeezy trainers for her late-night gym session, the Sun reported.

The hip hop artist was clutching a brand-new pair of Skullcandy headphones - possibly because she wanted to listen to some tunes while she worked out.

And even though she must have been exhausted - as she hid her tired eyes behind huge shades - she still made sure that she stopped to sign autographs for fans outside her hotel.he Barbadian singer seems to have limitless energy at the moment - even though she has been admitted to hospital for exhaustion more than once this year already.

She wowed crowds at Radio 1's Hackney Weekend with a typically fast-paced performance, and is now working on a new TV show for Sky Living with designer Henry Holland and Girls Aloud singer Nicola Roberts.

The programme will see the trio search for a new fashion designer - and the Bajan singer is the executive producer.

"To my friends at Sky Living, thank you for working with me all the way til 5am this morning! I''m happy to be a part of the fam, WELL DONE!!" she tweeted earlier. (ANI)