Liv Tyler has confirmed she is expecting her second child.

The 'Leftovers' actress, who already has son Milo, nine, with ex-husband Royston Langdon, will welcome her first child with British boyfriend Dave Gardner, who has son Grey, seven, with ex-wife Davinia Taylor, next year.

A spokesperson for the 37-year-old star confirmed the news to UsMagazine.com.

A source close the brunette beauty, who was introduced to her soccer agent beau by their mutual friend Kate Moss earlier this year, also revealed the couple are thrilled, adding: ''Dave's perfect for her.''

Another source previously said the couple are planning to keep the sex of their unborn baby a surprise.

The insider said: ''She cannot wait to meet him or her. I don't think she's finding out the sex before the baby comes.''

Liv recently admitted she was ''100 per cent planning'' on having more children.

The 'Lord of the Rings' star said: ''I hope I will have more children. I'm 100 per cent planning on it.

''If the stork could just drop it off on my roof, I'd be so happy - I'd have, like, 20.''

But she confessed she is less certain about marrying for the second time.

She said: ''That's something interesting that happens in your thirties. You're not in the stage anymore of princes and happily ever after.

''It's a different stage of acceptance and realisation about the realities of love and relationships. Forever is a long time.''