In the topsy-turvy world of heavy rock, having a good solid piece of mobile content in your hand is often useful.

And now the legendary Spinal Tap have obliged, with an iPhone app and assorted other bits of content coming to market in support of new album Back From The Dead and the One Night Only World Tour.

The app, created as part of a digital campaign being managed by INgrooves, includes an interactive wall for fans to post pictures and comments direct to the band, integrated with the band's Twitter feed and access to exclusive content.

Separately, the voices of band members David St Hubbins, Derek Smalls and Nigel Tufnel are available as ring tones and ringback tones.

INgrooves is also managing a YouTube promotion starting June 22nd where fans compete for the best fan generated music video of the band's hit songs.

Quite exciting, this computer magic.