peaking on the 'Audacy' podcast, Chris, 45, said: "I don’t think we’ll ever be able to match the BTS surprise. That was surprising even for us. "The journey from the first time it was mentioned – I was just like ‘how could that ever work?’ – to the song itself arriving and me thinking, ‘that could be for BTS’ – to now it feeling like the most natural collaboration in the world. "It’s an amazing lesson for myself in keeping an open mind all the time, because you just never know what life or music is gonna throw you."