Singer continues to perform regional covers with renditions of "Hey Jude" in Liverpool and "Nothing Compares 2 U" in Dublin
The singer-songwriter on how O'Connor taught her — and so many others — to stand up for what's right, even as she got a raw deal from the music industry
The Irish star, who has died at age 56, sang with power and grace
Polarizing Irish singer-songwriter was unlikely pop superstar, though mental-health issues persisted throughout her career
'Nothing Compares' examines how the Irish musician paved the way for so many women's rights issues — and was completely run over in the process.