Question: What Channel 4 presenter wrote "It?"
Context: Channel 4's Comedy Gala of 2010 was a British comedy benefit show organised by Channel 4.  It was the inaugural Channel 4 Comedy Gala, an annual charity event held O2 Arena in London in aid of Great Ormond Street Children's Hospital.  Filmed live on 30 March 2010, a two and a half-hour highlights show was broadcast on Channel 4 on 5 April 2010.  Billed by Channel 4 as "the biggest live stand up show in UK history" it featured seventeen comedians performing stand-up, as well as a number of others performing live and pre-recorded sketches, to an audience of 16,000.  It raised nearly £1 million to open a new anaesthetic room. Roland Buerk (born 1973), was a journalist working for the BBC.  He was the Tokyo Correspondent for BBC News and is best known for his coverage of the 2011 Tōhoku earthquake and tsunami.  He is the son of former BBC newsreader and current BBC Radio 4 presenter Michael Buerk.  He left the BBC in mid-2012, to work for Nissan in the United Arab Emirates. Seyi Rhodes (born 1979) is a British television presenter and investigative journalist of Nigerian descent.  He has worked for the BBC, Channel 4 Television, Five Television and Current TV.  From 2008, he has been the in-vision presenter and reporter for Channel 4's "Unreported World" documentary series, produced by Quicksilver Media. Vanity Lair is a reality television programme on Channel 4.  The series began on 3 February 2008 and is presented by Alexa Chung. Alexa Chung (born 5 November 1983) is a British writer, host, model, and fashion designer.  She has authored the books "It" (2013) and "it: Über Style" (2014), and has launched her eponymous fashion brand in May 2017. T4 was a scheduling slot on Channel 4 ("T4 Saturday" usually 9 am until 2 pm) and E4 ("T4 Sunday" usually 9 am until 5 pm).  It also aired on weekdays in the school holidays.  The slot had a separate station identification on screen graphic from Channel 4 and E4.  The logo of T4 is noticeably the top right segment of the standard Channel 4 logo.  Channel 4 originally produced the strand in-house until 2002, when production was passed onto independent companies.  The slot was targeted at the 16-34 age group. Scars is a United Kingdom docu-drama from Channel 4 Television which aired on Channel 4 on 3 July 2006.  It is also repeated at various times on Channel 4's sister channel, More4 as well as on Channel 4.  Scars is a recreation of a series of interviews done over about a year with Chris, a man with a violent, dangerous past who, now with wife and child, talks about his regret for the pain he has caused to his victims, how his personality was molded by his violent father, and his fears for his young son.  Jason Isaacs stars as Chris in an unforgettable performance, being interviewed by Leo Regan as himself. Stephen Ashton Jones (born 16 March 1977) is a Welsh television presenter, who currently leads the presenting team on Channel 4 F1.  He is best known as presenter of Channel 4's former teen schedule T4.  In the United States, he is best known as the host of the first season of "The X Factor USA". Channel 4's Comedy Gala of 2011 is a British comedy benefit show organised by Channel 4.  It is the second Channel 4 Comedy Gala, an annual charity event held O2 Arena in London in aid of the Great Ormond Street Children's Hospital.  It was filmed live on 24 May 2011, then broadcast on Channel 4 on 10 June 2011.  The first Comedy Gala was held 30 March 2010 and broadcast on 5 April 2010.  Billed by Channel 4 as "the biggest live stand up show in UK history", it featured seventeen comedians performing stand-up, as well as a number of others performing live and pre-recorded sketches.  The first gala raised money for a new anaesthetic room, while the second aims to raise money for a new operating theatre. Davina Lucy Pascale McCall (born 16 October 1967) is an English television presenter and model.  She was the presenter of "Big Brother" during its run on Channel 4 between 2000 and 2010.  She has also hosted Channel 4's "The Million Pound Drop", "Five Minutes to a Fortune" and "The Jump" as well as ITV's "Long Lost Family" and "This Time Next Year".
Answer: Alexa Chung