Wales head coach Warren Gatland was the VIP of the night .
Wales head coach Warren Gatland had the honour of switching on the Principality Stadium sign for the first time after giving an impressive 3 , 2 , 1 countdown in Welsh .
Wales head coach Warren Gatland was the VIP of the night and had the honour of switching on the Principality Stadium sign for the first time after giving an impressive 3 , 2 , 1 countdown in Welsh .