PREVIEW

The new track, Proof of Love, will be included as a bonus track on the vinyl release of her 2011 album Love?, in November. "It's really a beautiful song about this kind of duality," the 57-year-old singer told Variety. "It's this happy dance song, and these are the things that are the proof of love. One of them is pain and grief when someone's gone. You feel pain and grief. That's really proof of love. I wanted to make that a happy thing. I wanted to make that a marker instead of this devastating thing."