A group of people transformed a Northern Line tube carriage into a 'nightclub' with its very own bouncer, balloons and party tunes. The hilarious video can be seen here:
In the video - which has been seen 45,000 times since yesterday - a red rope is seen separating the carriage from the 'nightclub' and a man dancing in a viking costume.
The 'bouncer' in the video is a man in the video clutching a clipboard, asking passengers entering the train carriage if they're on the guest-list. The 'security guard' adds: "It's a party tonight, OK. If you wait one minute you can come in. It's one in, one out, OK?"
Most passengers seem amused by the party-goers, and some are even seen dancing to the music.