Hi Naiho..... trust you good, please permit me to correct something little. "I went to karaoke" may sound okay. But would have been better if you said "I went to a karaoke bar" or "I went karaoke singing." This way it sounds even more natural. You could even be more detailed and put it like this. "I went to a karaoke bar last night." "I went karaoke singing with my friends."