The British documentary series Chartjackers ran for a single season of eleven weekly episodes during the autumn of 2009. The series documents the lives of four teenage video bloggers—Alex Day, Johnny Haggart, Jimmy Hill and Charlie McDonnell—from the video-sharing website YouTube as they attempt to write, record and release a pop song by crowdsourcing through social media in ten weeks. When initially aired, the first ten episodes of Chartjackers, each five minutes in length, detailed the events of the previous seven days. The final episode, broadcast on 21 November 2009, compiled highlights from the previous ten weeks into one 30-minute episode, which was narrated by British DJ MistaJam. All eleven episodes were produced by Adam King and Jonathan Davenport of the production company Hat Tri