But the teenage metallers have found the most unlikely of allies in Grohl who has penned a letter to the authority after the band got in touch with him. Asking the council to 'reconsider the restrictions,' Grohl recounted his own youth spent developing his musical craft in a garage.

In his open letter, which he shared with his band's more than 12 million followers, he wrote: "Music is not only a healthy pastime, it is a wonderful, creative outlet for kids, and fosters a sense of community necessary to the emotional and social development of any child."