Lady GaGa wants a hat made out of live cockroaches.

The 'Marry The Night' singer - whose real name is Stefani Germanotta - is famed for her outrageous costumes, including a dress made out of meat which she donned for the 2010 MTV Video Music Awards, and has asked her team to create some headwear filled with the insects after learning of a study which suggests the creatures respond more to her music than that of any other artist.

A source told The Sun newspaper: ''Lady Gaga has been looking to top her famous meat dress for some time - and this could be it. She dubbed cockroaches 'My real life monsters' after hearing of the recent study.

''Now she wants to incorporate them in a headpiece by having them crawling around inside a netted cage.''

The study was conducted by engineering students from New York who were studying The Movement of insects. Rock groups Weezer and Avenged Sevenfold had no effect, but Lady Gaga's music made the roaches dance.

Meanwhile, the star has suffered concussion after being hit on the head with a pole by a dancer on stage in Auckland, New Zealand.

The singer soldiered on through 16 more songs, telling the crowd: ''I want to apologise. I did hit my head and I think I may have a concussion but don't you worry, I will finish this show.''