Nine Muses' Sam, Erin, and Hyuna have been selected to be the newest endorsement models for water park, 'Woongjin Play Doci'! These idols were all originally models, so they had no problem showing off their bodies for the water park's CF. Representatives commented, "They've maintained both a sexy and cute image since their debut last year. We noticed that they have a variety of charms to show and felt that they'd fit well with the dynamic quality of some of the new features of our water park." Their CF began airing June 1st, and new profile posters of the girls were released today. Nine Muses is also reported to be preparing for their comeback this summer, so stay tuned for more updates. [gallery] Source + Photos: Sports Chosun via Nate