'Halo' superstar Beyoncé has been advised to lift the ban prohibiting professional photographers from her current tour's concerts because it could damage her career in the long run.

The ban was imposed earlier this year after a series of unflattering shots from her Super Bowl halftime performance were published (shown left), and she has since denied photographers access to her shows on the Mrs. Carter tour.

Now, the National Press Photographers Association along with 19 other organisations are threatening to blacklist her if she doesn't cancel it. The NPPA supply many news outlets with professional images and a letter has been written to Beyoncé's team from the company, which explains the importance of revoking the restrictions.

NPAA general council Mickey Osterreicher wrote: "Ending the ban is more likely to result in publication of fair, objective and mutually beneficial photographs that serve your interests and ours."

He also explained how the media are more likely to seek out unflattering pictures of the songstress to use in their work because of the ban.

Watch the opening act of her current stage show here: