noun, noun or participle which takes 'suru'
solo karaoke; karaoke by oneself
Refers to the activity of going to a karaoke establishment alone, often for practice or personal enjoyment. Can be used as a noun or with する to describe the action.
週末はよく一人カラオケに行く。
I often go to solo karaoke on weekends.
一人カラオケをすると、好きな曲だけ歌える。
When you do solo karaoke, you can sing only the songs you like.