The music biography/autobiography is a curious literary beast. There are a dazzling number of books written about music stars and by music stars themselves. Some are very good, and some are downright terrible. And boy! Are there a lot of them.

From Hammer of the Gods, the hair-raising and very unofficial biog of Led Zeppelin, published in 1985 when the band had yet to be dredged up from collective memory, to The Dirt, the eye-popping account of Mötley Crüe, music biographies can be endlessly entertaining.

There are more books about The Beatles than songs by The Beatles...

As a literary form, we can usefully split them into three categories - the classics, the ones we never asked for, and the cut and paste cash-ins that are about as useful as a puff piece in a Sunday newspaper supplement. 

There are also the ones we badly want or at least are curious about. Bono, for example, has been busy penning his autobiography for the past few years to add to the already groaning shelves of tomes about U2.

All music biogs do have one thing in common. All are rags to riches stories, full of sex and drugs and rock and roll, but the best are redemption tales and they usually feature a good deal of score-settling and setting the record straight.

In our ongoing and worsening age of suffocating PR spin and closely curated social media accounts, we turn in hope to the rock biography and autobiography for the unvarnished truth.

Alan Corr appeared on the Dave Fanning Show on RTÉ 2fm over the weekend to pick the best pop and rock books out there. Listen above...