A new group by the name of "Piggy Dolls" made their debut this week with their mini-album, "Piggy Style." The group made their debut performance today on "Music Bank" with their title track, "Trend."  The track features a funky electronic sound under the genre of 'new funk' and showcases the trio's powerful vocals and fantastic performance style. They've been headlining since the release of their music video for their unconventional style, and were even recently affectionately nicknamed "Super Heavy Idols."  The members are comprised of Kim Min Sun (20), Lee Jiyeon (20), and Park Jieun (17). Representatives of the group's agency revealed, "'Super Heavy Idol' Piggy Dolls may be rookies, but they are prepared to capture the audience with their vocals and performance." Check out their debut performance below, and stay tuned to for their debut on Music Core as well. Source + Photos: Herald Economy via Daum