Beyoncé has unveiled more behind-the-scenes photos ahead of her hotly-anticipated Super Bowl halftime show this weekend, including a promo shot of her dressed as a referee.

The international superstar will perform live at the coveted event at the Mercedes-Benz Superdome in New Orleans on February 3.

Last week, the beauty shared a series of rehearsal pictures on her Instagram page, giving fans a taste of what's to come during the performance. 

The 'Love On Top' songstress has now released a glamorous promo shot, showing off her famous curves in a black and white referee uniform posing with an American Football.

Beyoncé looks stunning in the shot wearing sexy thigh-high leather boots and sporting volumised tresses and black face paint.

The singer also released several new rehearsal photos, with one showing the star wearing a striped catsuit and posing with a pretend microphone.

Meanwhile, it was recently revealed that Beyoncé will not be paid for the prestigious Half Time show.

NFL spokesman Greg Aiello revealed: "We pay the production costs for the halftime show, there is no fee for the artists."

President of the consultancy Sportscorp Ltd. Marc Ganis added: ''Beyoncé will not get paid, but her back-up singers, her musicians, all the extras - they will be paid by the NFL production budget. But last year, for Madonna's show, the budget certainly exceeded the budget the NFL gave her, and that will almost certainly be the same this year.

"This means the artists have to pay the difference out of their own pocket - it won't be the act themselves, but their business side. Their record label, or even Pepsi could fund it for Beyoncé."