Watch Live: Mnet's 'Produce x 101' episode 4!

Mnet is airing 'Produce x 101' episode 4 live!It's season 4 of the popular competitive reality series, and fans are excited to see which trainees will make the final group. Producers have already revealed the 'Produce x 101' project group will be promoting together for 5 years. Actor Lee Dong Wook is hosting this season.