"The video is about the same thing as the song, about a breakup and couple spending the last night together even if they know it's probably not the right thing," says Zedd.
"It's really sad but also beautiful," says Williams. "It's two people that know they're not cut out for each other but are trying to get the most out of it before they part for good. To me, it's really romantic but sad."
Watch the behind-the-scenes video above.