The Queen has now approved Carwyn Jones' re-appointment as First Minister. Once he has taken the oath of office he will be able to announce his cabinet and deputy ministers.
Kathrine Jenkins and Shirley Bassey were amongst a galaxy of showbiz stars in a show honouring the Queen's birthday.
The spectacular show was held in the grounds of Windsor Castle - said to be the monarch's favourite home.
The monarch was joined in the royal box by the Duke of Edinburgh, the Prince of Wales and Duchess of Cornwall, the Duke and Duchess of Cambridge and Prince Harry.
Dame Shirley Bassey will perform for the Queen at the star-studded show to celebrate her 90th birthday.
The Queen's 90th Birthday Celebration will feature leading figures from the world of entertainment and an equestrian spectacular which will be broadcast live on ITV in May. Dame Shirley has sung before the monarch on several occasions including for the Royal Variety Performance and during The Queen's Diamond Jubilee Concert at Buckingham Palace in 2012.
Other stars include Gary Barlow and Kylie Minogue.
One of hundreds of beacons was lit in Cardiff Bay to celebrate the Queen's 90th birthday.
Watch ITV Wales' live broadcast below:
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The lighting of the beacon culminated with a huge fireworks display.
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The Duke of Cambridge will meet injured rugby players before watching the RBS Six Nations Wales v France game at the Principality Stadium.
William, who is vice royal patron of the Welsh Rugby Union and patron of the Welsh Rugby Charitable Trust, will hold a reception for 11 injured players and their families.
Established in 1972, the charitable trust supports players who have been severely injured whilst playing rugby union in Wales.
As well as offering practical support, including specially adapted vehicles and wheelchairs, the trust provides pastoral care and social opportunities for the former players and their families.
Beneficiaries are also often invited to watch Wales' home rugby internationals at the Principality Stadium.
William became vice royal patron of the WRU in February 2007 at the start of that year's Six Nations championship.
His visit coincides with the match which will see the home team take on France, who have been defeated by Wales in their last four Tests.
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