The 2012 Idol Star Athletics â Swimming Championships () was held at Jamsil Arena in Seoul, South Korea on January 8, 2012 and was broadcast on MBC on January 24, 2012 (2 episodes). At the championships a total number of 10 events in athletics and 2 events in swimming were contested: 6 by men and 6 by women. There were a total number of 150 participating K-pop singers and celebrities, divided into 16 teams.