Joy and Crush talked about their collaboration track and promised to dance to Red Velvet's "Psycho" together if it tops music charts.

Crush dropped "Mayday" featuring Joy today, and on May 20, the two held a 'Comeback Countdown Live' show to celebrate the release of their collab song. The Red Velvet member expressed, "I'm such a fan of Crush sunbaenim that my heart fluttered when the offer to feature in the song came in," and she said on their duet, "It's rough these days, and people can feel frustrated. I think those feelings are expressed well in the song, and it's relatable."

Crush responded, "It's an honor for me. I suggested it because as I made this song, I thought that is must have Joy's voice. Thank you for being the right person in the right place for this song," adding, "Whenever you need my help, please contact me."

Both singers also promised to create a dance video to Red Velvet's "Psycho" if "Mayday" tops music charts.

Have you heard Joy and Crush's "Mayday" yet?