Irish singer steps in following Womack's death in June
Singer says her public row with Cyrus has been 'very helpful'
'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