This karaoke box can be hired by group of friends. There are all sorts of songs here, Japanese, British, American, Korean, Philipino, Chinese! It's only 2,000yen from 11pm until 7am (next day). You can drink as much as you want if you pay 1,000 yen on top. You can order drink by remote control.
shinjuku-ku, Kabuki-cho, 1-3-16
www.pasela.co.jp/shop/ps207/207.html