The singer has apparently spent a week working with the band during the Florida stint of their Final Frontier jaunt.

Despite being one of the most recognisable faces in music, Lady Gaga has been keen to get involved, and has been spotted doing the ironing and handing out drinks.

"It's a side to Gaga we've never seen. She is a massive Iron Maiden fan and was willing to be at their beck and call, just to hang out with her idols," a source told the Daily Mirror.

"She was humming along to their hit The Number of the Beast while carrying out her chores. And after all her hard work backstage she was rewarded with some drinking games."

Meanwhile, Lady Gaga release her second album proper, 'Born This Way', on May 23.

(by Jason Gregory)