Corrections and clarifications: An earlier version of this story misidentified the release date of “Reality Show.” The EP was released Aug. 7. As one of the trailblazers of the Hallyu, or Korean Wave, ...

Now this can get a little confusing, but male duo TVXQ and four-member girl group Girl’s Day both held their comeback stage with their new songs, both titled “Something.” Next week, there will be ...