Question: The lead vocalist of rock band Drug Restaurant is also a member of the cast of a South Korean variety show that airs on what network?
Sentence (from "2 Days &amp; 1 Night"): 2 Days & 1 Night (; also known as 1 Night 2 Days; abbreviated as 1N2D) is a South Korean reality-variety show that airs on KBS2 beginning August 5, 2007.
Relevant evidence: Yes