Mark Andrew Watson (born 13 February 1980) is a British stand-up comedian and novelist. Watson has made regular appearances on BBC Two's comedy panel show Mock The Week; he has also been a panellist on BBC music quiz show Never Mind The Buzzcocks three times—once as guest captain—in addition to appearing on current affairs panel show Have I Got News for You. Watson performed several talking heads in Armando Iannucci's spoof documentary series Time Trumpet. In Australia he has been seen on Rove, Good News Week, Spicks and Specks and the Melbourne International Comedy Festival, all aired in April 2007. Watson performed stand up on episode one of Michael McIntyre's Comedy Roadshow, aired 7 June 2009.

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Katherine Jenkins (born 29 June 1980 in Neath, Wales) is an award-winning Welsh mezzo-soprano. Her first album Premiere made her the fastest-selling mezzo-soprano to date and she later became the first British classical artist to have two number one albums in the same year. She also stands as the first female artist to win two consecutive Classical BRIT Awards. Jenkins has released five classical number one studio albums to date selling 4,000,000 copies. Her sixth album, Sacred Arias, was released on 20 October 2008. Her albums feature arias, popular songs, hymns and classical crossover music and she has performed in a large number of concerts around the United Kingdom and other countries, including the United States and Australia.

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Gethin Clifford Jones (born 12 February 1978) is a Welsh television presenter best known for co-presenting the long-running BBC children's show Blue Peter.

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• Cathy Holloway
• Lee Pryer

Michael Sheen, OBE (born 5 February 1969) is a BAFTA- and Laurence Olivier Award-nominated Welsh actor. Having worked with screen writer Peter Morgan on five films, Sheen has become known for his portrayals of well-known public figures: Tony Blair in the Stephen Frears directed films The Deal and The Queen, David Frost in both the stage production and the film version of Frost/Nixon and football manager Brian Clough in The Damned United, among others. He is also known for his role as Lucian in the Underworld film series.

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• Thomas Blick
• Jane Lombard

Michael Richard Lewis (born August 17 1977) is the rhythm guitarist for the Welsh alternative rock band Lostprophets. He studied civil engineering for a year before turning to music. His mother was a shop assistant, and his father worked in management for a chemical company. Mike attended Hawthorn High School, Pontypridd, and was in the same year as Lostprophets vocalist Ian Watkins, and his favourite subjects were science and history. Originally he was the bassist for the band but soon became a guitarist alongside Lee Gaze and Stuart Richardson replacing him on bass. He has so far recorded three albums with the band, with the newest, Liberation Transmission, reaching number 1 in the UK album charts. In September 2006 he married his girlfriend, Amber Payne. Mike now resides in Santa Monica, California. On 24th February 2009 he confirmed on his facebook page that he and his wife were expecting their first child. Mike met Ian at nursery and they were friends ever since. Before Lostprophets, Mike and Ian were bandmates in a band called Public Disturbance. Mike's first concert (as a concertgoer) was Tesla at St. David's Hall. Mike is an avid Star Trek fan and even owns a Star Trek uniform. He surfs Santa Monica beach almost every day when he is home. He was once a vegan but is now vegetarian, and like bandmates Ian Watkins and Lee Gaze, he is straight edge. Lewis is a lifelong Everton fan.

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Jamie Oliver is a member of the alternative rock band LostProphets.

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• Mikey Serpico

Ian David Karslake Watkins (born 30 July 1977 in Merthyr Tydfil, Wales) is the lead singer and a founding member of the Welsh alternative rock band Lostprophets . In 2009, Ian started a remixing side-project. The side-project is called L'Amour La Morgue. So far he has released 7 remixes by artists such as The Killers, Beyonce and Tears for Fears. He has also released a free mixtape, which you can find on the website along with a free download of a song that was premiered at a fashion show in 2008. As of 2009, Lostprophets have recorded three albums, Thefakesoundofprogress, Start Something and Liberation Transmission, and toured extensively in Europe and America playing famous shows such as the Reading Festival in 2004 and 2007.

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• Mikey Serpico

Cai Griffiths born 5 January 1984 in Bangor, Wales is a rugby union player for the Ospreys in the Magners League.

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• Thomas Blick
• Emma L

Alan McGee (born 29 September 1960 in Glasgow, Scotland) is a London-based music industry mogul,DJ, and musician. He is credited with discovering Oasis.

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Up All Night is a programme broadcast on the national radio station BBC Radio Five Live in the United Kingdom and is on air between the hours of 1am and 5am every night.

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