Question: Splendid Politics, is a 2015 South Korean television series, stars included in the film is which  South Korean actor and singer, who is a member of which group ?
Sentence (from "Seo Kang-joon"): Seo Kang-joon (born Lee Seung-hwan on October 12, 1993) is a South Korean actor and singer who is a member of the group 5urprise.
Relevant evidence: Yes