VIDEO : Gwyneth Paltrow Sings On New Coldplay Song 'Everglow'

LONDON ? They might be exes, but Gwyneth Paltrow and Chris Martin keep it cool enough to work together on sweet, sweet music. Martin revealed that Paltrow would feature on "Everglow," a track from forthcoming album A Head Full Of Dreams in a recent interview with Q Magazine. Like any human, she was like, 'I can't do that! To me, it?s about ? whether it?s a loved one or a situation or a friend or a relationship that?s finished, or someone?s passed away ? I was thinking about, after you?ve been through the sadness of something, you also get this everglow.