Chris Martin appeared on Zane Lowe’s Beats 1 radio show today to talk about Coldplay’s approaching album A Head Full Of Dreams. We’ve already heard first single “Adventure Of A Lifetime,” and during the show, Martin premiered a new track from the album, “Everglow,” which features his ex-wife Gwyneth Paltrow. As Pitchfork reports, this is what he had to say about the song on-air:

I was in the ocean one day with this surfer guy, who spoke just like you’d imagine a surfer guy to speak … He was like, ‘Yo dude, I was doing this thing the other day man, it gave me this total everglow!’ I was like, ‘What an amazing word!’ Then the song came completely out. 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. That’s what it’s about.

Listen below.

A Head Full Of Dreams is out 12/4 on Parlophone/Atlantic.