After generating much buzz through Jay Park's "Hype Nation" last year, the ladies of Rania have finally revealed themselves through their debut single, "Dr. Feel Good". The girls were co-produced by Teddy Riley and DR Music, the label behind the hit girl group, Baby V.O.X. The two are reportedly ready to make their mark on the Hallyu wave once more. The album was produced in three months at a studio in Los Angeles, and despite being busy preparing for Michael Jackson's posthumous album, Teddy Riley took the time to direct everything from their music, stage concept, choreography, and outfits. [gallery] The group is comprised of Semi, Riko, Jui, Dee, Joy, T-ae and Xia; Joy is from Thailand, and Riko is a Korean-Japanese. The girls are reportedly fluent in English, Chinese, Thai, Japanese, and Korean. "Dr. Feel Good" delivers a powerful sound with an addictive melody, a combination that Teddy Riley assures can't be found in other girl groups. The CEO of DR Music commented, "The girls have shot a total of seven CFs prior to their debut due to the explosive amount of interest they've generated thus far." MV: The girls will be making their debut on Mnet's "M! Countdown" on the 7th, followed by "Music Bank" and "Inkigayo" on the 8th and 10th. Source: Sports Chosun via Naver