I had a great time last night singing Karoke, and did indeed attempt Bohemian Rhapsody. My favorite Karaoke song is now Everybody wants to Rule the World by Tears for Fears (who also incidentally just released a great new album called "Everybody Loves a Happy Ending").
On the way to my first business meeting, I found myself softly singing some of the songs from the previous evening and wondered whether the concept of a Karaoke Taxi would be popular in Japan. The idea is that you could order songs from a device in the back of the taxi and then sing along to them on the way to your destination. This could be a great way to pass the time, and I would definitely use this service. Each song would add a small amount to the fare, allowing taxis to make additional incremental revenue. I'm not sure how many people would enjoy Karaoke without also having a drink, so perhaps the taxi could also have a Saki dispenser!