Gavin revealed their son’s arrival along with his unusual name when he took to Twitter. The musician wrote: ‘Welcome Apollo Bowie Flynn Rossdale.’

Gwen revealed to fans that the couple were expecting their third son when she took to Instagram, sharing a snap of herself with the caption: 'I was ready to hand over the crown. But I guess I am still queen of the house. #itsaboy #surroundedbyboys.’

The couple are also parents to 7-year-old Kingston and 5-year-old Zuma.

The singer never revealed her pregnancy, but she told Elle magazine in 2012 that her and Gavin had been trying for a third child for some time.

Gwen has been using Instagram to keep fans updated on her pregnancy and to show the world her chic maternity style

The stylish singers met when they toured together in the 90s and they have been married for 11 years.

Gavin is also father to love child 23-year-old Daisy Lowe. He is only just establishing a relationship with his daughter due to Daisy’s mother- socialite Pearl Lowe- withholding the truth about Daisy’s paternity.