Katy Perry's appearance at the MTV Awards earlier this month in West Ham United lingerie – a tribute to her boyfriend Russell Brand – has provided the club with an unlikely new revenue stream.

The American singer appeared at the ceremony in a West Ham basque, complete with the team's badges on her chest, prompting the club to commission a special limited-edition range of underwear for sale to fans. West Ham say they were "responding to huge demand".

The designer Siobhan Dillon's creation, made from replica shirts, was seen by millions of viewers around the world: a limited-edition run of copies will be sold for £300 each.

"I thought it would be cool to try and make the shirt as football-oriented as possible," said Dillon. "So, I used the collars along the top of the brassiere and used the two badges on the front. It was made entirely from the three shirts, but we had to take the Airtex out and replace it with some lining."