Madge may preview 'Hard Candy' album live next month
The star will phone in 'Hard Candy' a week early
'All is well and wonderful' says her publicist
Justin Timberlake introduces Madge in New York
Singer joined by Leonard Cohen and John Mellencamp
'Hard Candy' will contain 12 newies from the star
She says they talked about relationships to write songs
The Queen Of Pop returns with 'Hard Candy'
The queen of pop also announces a release date
Lou Reed, Ben Harper also among presenters