Grammar or sentence check please?
Idol groups are the most popular singer obviously at that time, there were other popular different types of Korean music such as dance, techno and soft rock.
- John PLv 74 weeks agoFavorite Answer
It was very hard at first reading even to understand what you are trying to say.
Possibly: "Idol groups produced the most popular type of vocal music at that time. There were also other types of popular music such as dance, techno, and soft rock."
I assume that your potential readership would know what an 'idol group' was at that time. In Britain I do not know that expression.