Firstly, Karaoke in a pub. This type of Karaoke is the origin of Karaoke. Before appearance of Karaokebox, this type of Karaoke was the most general. Secondly, Karaoke in a party. This type of Karaoke is a part of entertainment.
People sing songs in order to put enthusiasm into the party.
Thirdly, Karaoke in a bus. When people travel by bus, people sing songs in order to put enthusiasm into the bus. This type of Karaoke is also a part of entertainment. Finally, Karaoke in a Karaokebox. Karaokebox is the special place of Karaoke.