Gwen Stefani gives birth to baby boy Zuma Nesta Rock

First Frank Zappa called his daughter Moon Unit, then the Beckhams named their first son Brooklyn, and now Gwen Stefani has succumbed to the celebrity cult of unusual baby names.

After calling her first son the relatively respectable name of Kingston, Stefani has opted for an interesting string of names for her latest family addition.

The No Doubt singer, 38, gave birth to a baby boy named Zuma Nesta Rock Rossdale at 12.46pm on Thursday afternoon.

Expanding brood: Gwen Stefani and husband Gavin Rossdale already have a two-year-old son Kingston

Stefani gave birth to the 8lbs 8 ounce boy via Caesarean section at Cedars-Sinair Medical Center in Los Angeles.

Baby Zuma joined Stefani and husband Gavin Rossdale's two-year-old son Kingston.

A statement from the family reads: 'Kingston, Gwen and Gavin Rossdale welcomed the newest member of their family.

Mother, baby and family are all happy and healthy.'

Stefani's pregnancy was confirmed by her father-in-law Douglas Rossdale in January.

Last summer, The Sweet Escape singer spoke of her wish for a brother or sister for her son Kingston and how much she enjoyed the pregnancy process.

Heavily pregnant: A month ago, Gwen Stefani joined her husband Gavin to support their friend Roger Federer play Rafael Nadal in the Wimbledon tennis final

She said: 'Obviously I'm in a race to have another, but I don't want to do it while on tour.

'But I can't wait to get pregnant again. It's so fun and consuming and romantic.'

Since giving birth to Kingston in a Los Angeles hospital in May 2006, Stefani has been inseparable from her adorable toddler.

She enthused: 'I definitely don't get enough sleep, but I'd rather spend time with him. I've got this extra-fun, amazing, little guy who just wants to hang out with me.

'I love him so much. He's the best thing that has ever happened to me.'

Former Bush frontman Rossdale is also father to 19-year-old model Daisy Lowe, who is currently dating DJ/producer Mark Ronson.