Singer writes she wants to 'help bring about changes'
The Irish singer was one of the artists featured on the charity single
The singer also claims she 'had a fist fight' with Prince
The book will be released in March 2016
The singer speaks out in the wake of Robin Williams' suicide
Irish singer steps in following Womack's death in June
Singer says her public row with Cyrus has been 'very helpful'
Sinead O'Connor says Miley Cyrus feud is 'over' and accuses Simon Cowell of 'murdering' music Tickets
'It's not actually about Miley, it's about music being murdered' says O'Connor
Cyrus cited O'Connor's video 'Nothing Compares 2 U' as an inspiration for her 'Wrecking Ball' video
Appearance on The Andrew Marr saw singer criticise her host on live TV
The singer said 'the church has been brought into dreadful disrepute by lies and blasphemies'
But she says he won't remember it because he was 'off his face' at the time
Singer begs president to reduce the trio's sentence to house arrest
Singer says that her career prevented her from following the wrong path
Singer opens up about the reasons she cancelled her 2012 tour
Singer says she has shelved all her live plans due to her bipolar disorder
The singer also says she'd like to do an interview in "weird sex gear"
Singer opens up about her recent troubles
Singer claims she feels 'really unwell and in danger'