My Prerequisites for a successful Commercial Singer:

- Good-looking / distinctive style
- Sing really well (distinctive tone, wide range, good control and power)
- Gets to sing good songs
- Dance really well in at least one genre
- Can play at least one instrument very well
- Can compose lyrics/melodies
- Likeable personality
- X-factor???
- either you have all of this or you join a group to cover your weakness and draw on the strengths of your members
- or you are not successful

listening to hwanhee's new album. they didn't make full use of his voice! maybe he's better off in ftts.