Red Velvet will be on 'Weekly Idol'.

An insider revealed that the girls had recently filmed an episode. It's been about a year since the girls were on the show, when they were promoting "Russian Roulette". Since the girls are promoting their 2nd full album, they're going to be on 'Weekly Idol' to promote to the fullest.

It's the first variety show since their "Peek-A-Boo" comeback where the full group will be on together.

Make sure to watch it when it airs.