'Weekly Idol' released the preview for their upcoming episode with NCT!

All 18 members of the SM Entertainment boy group is guesting on the show next week. As expected, the studio is completely packed by the large group, startling MC's Defconn and Jung Hyung Don.

The preview also shows the boys dancing to EXO's "Growl", Red Velvet's "Red Flavor", and more.

Take a sneak a peek at the upcoming episode with NCT in the preview!