SM new group featuring two new EXO-K, EXO-M's prologue single (* EXO indicating a prelude Single) 'What Is Love' is a surprise the public.EXO motifs in the solar system have obtained EXOPLANET oehaengseongeul mean, in the name came from an unknown world means new star is contained by implication, EXO KOREA to paste the K and M of MANDARIN EXO-K, EXO-M, both teams separated, starting with South Korea and Chinese-speaking presence in the global arena of EXO captivated the world with music to aspiration getdaneun was born.'What Is Love' is a full album released before the EXO-K, EXO-M's songs anticipate the results that the prologue as a single until now teaser video and images through the members' various images to present a topic gathered to lead EXO-K, EXO -M's new attractiveness as an opportunity to meet different interests and expectations of music fans are expected to be amplified.EXO-K with the EXO-M on the same day, same time, Korean and Chinese, respectively, the same song and released simultaneously in Korea and China to debut as a group, called the prologue single also Korean and Chinese versions of two teams simultaneously disclose the Global is expected to increase further in anticipation of the fans.New song 'What Is Love' the world's leading producer Teddy Riley and hit composer Youngjin Yoo two kolraboreyisyeonhan authentic R & B song, the song overall atmosphere leading vintage electric guitar, start with a heavy, simple, ethnic drums and 808 bass, a smooth combination of the pad, synth, and minimal configuration of synth leads, to further stimulate the imagination deuthamyeo, DO and KIS is up the hill two members of the Korean version, Chinese version of Chen and sing along ruhanyi unusual attraction is enough to feel.Meanwhile, the teaser video released sequentially through the members and EXO-K and EXO-M member, configuration, and when the debut is still shrouded in mystery and it is getting a lot of questions.