Amusing footage of famous YouTuber, James Ware, introducing a "new sport" to London - Urban Horse Riding.

The video, filmed this week to mark the Cheltenham Festival, shows James, who has previously sneaked into a James Bond movie premiere, dressed as a jockey.

He then rents"Boris" bike and rides the entire length of the carriages on a London underground train.

In previous videos, James has tried to beat Ben Stiller's record for the longest selfie stick as well as eating in every McDonalds in London in a single day.