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As Musical Director working with the Welsh Rugby Union, Haydn has conducted bands, choirs and supporters at more than 80 international matches at Cardiff's Millennium Stadium over the past twelve seasons. He has travelled to Murrayfield in Scotland, Stade de France in Paris and Newlands in Cape Town to conduct the singing and Welsh Anthem, as well as to Australia, New Zealand and South Africa with Melody Music's British and Irish Lions Choir, where he led the singing before many of the Test Matches and entertained supporters in 'The Lions Den'.
Haydn has also conducted the singing before many cup final games at Cardiff, Twickenham and Wembley, including the Heineken Cup, the EDF Cup, the Powergen Cup and the LDV Vans Trophy, as well as at Lords Cricket Ground on the occasion of an England international cricket match.
In 2008, he was honoured to appear at the FA Cup Final in Wembley, working with the Band of the Grenadier Guards, Lesley Garrett and Katherine Jenkins. Haydn is seen here leading the singing at Wembley Stadium prior to the 2008 FA Cup Final
Haydn has been involved in two Rugby World Cup tournaments - in 1999, he was Assistant Musical Director in Cardiff, and in 2007 travelled to Paris to work with a French Choir and Band in the recording of five National Anthems for the tournament. In 2009 Haydn was appointed Musical Director for the Rugby League Challenge Cup Final at Wembley Stadium, his 5th appearance in this event
At the request of the WRU, Haydn invited and conducted 24 Male Choirs (1015 choristers ) to provide the prematch entertainment for the Wales v Barbarians game in June. This proved so successful that he has assembled and will conduct almost 2000 singers, 42 choirs for the Wales v Australia game in December 2011.
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The 1800 choristers in the massed choir for the Wales v Australia game Saturday December 3rd
Future plans include the three Six Nations Games in 2012