Robbie Williams and pregnant wife dance in delivery room

Pop star Robbie Williams has posted a bizarre series of videos online showing him and his wife dancing around in the delivery room while the mother-to-be is in labour.

In one of the videos Ayda Field looks on as her husband bops around and asks her to join in by singing.

In another of the videos Field dances to Iggy Azalea's hit 'Fancy' as Williams sits down at his computer.

The 40-year-old singer posted the videos online overnight as he and his stiletto-clad wife awaited their second child.

Williams and Field married on Los Angeles in 2010 and had their first child, daughter Teddy Rose, in September 2012.

At the time of publication Field had yet to give birth.