'Sugarman 2' will continue to excite the viewers by bringing in two very popular idol groups next week to perform. In the preview clip, Red Velvet's Wendy and ASTRO's Cha Eun Woo face off against each other in a staring contest, only to be interrupted by Yoo Hee Yeol who says, "What are you two doing?" Also, Red Velvet's Joy,�one of the MCs, will be joining the group's performance. Check out the preview clip above!

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