Rihanna gets into character on the set of Ocean's Eight

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Rihanna has been hard at work in her role as a film star for upcoming crime thriller Ocean's Eight.

She's usually better known as a pop star, but RiRi cast aside her normal glam look in favour of a distinctly scruffier costume for a day of filming in New York.

Rihanna
Rihanna has been filming for Ocean's Eight (Rex)

The Diamonds singer was spotted on the set of the latest instalment in the Ocean's series in a chilly-looking park in the city with long dreads in her hair and wearing a baggy outfit of a multi-coloured hooded jumper, ripped jeans and sensible brown boots.

It may not have been her usual image, but Rihanna was obviously still feeling proud as she posted a snap to Instagram, captioning it: "clocked. in. #08ยดยด

She was filming scenes alongside two of the film's other stars, Cate Blanchett and Sandra Bullock, who also layered up in winter clothes - albeit slightly smarter ones.

Rihanna, Sandra Bullock and Cate Blanchett filming
Rihanna filmed with Sandra Bullock and Cate Blanchett (Rex)

Rihanna was seen sharing a joke with Cate as the pair sat on a bench, and striding through the city with both Cate and Sandra.

Cate Blanchett and Rihanna
Cate and Rihanna share a joke (Rex)

Off camera, she wrapped up against the cold autumn day in a huge, oversized fake fur hoody that reached almost to her ankles.

Rihanna
Rihanna wrapped up warm for filming (Rex)

Ocean's Eight, due to be released in June 2018, is said to be an all-female spin-off of the film series that stars George Clooney and is thought to be about a heist at the Met Gala in New York.

Also starring in the film are Dakota Fanning, Helena Bonham Carter, Sarah Paulson, Anne Hathaway, Mindy Kaling and Damian Lewis.