Heidi Klum and Seal announced they were expecting their fourth child in April

Heidi Klum has become a mum for the fourth time.

The model gave birth to baby girl Lou in LA on Friday.

‘If you love your existing children with all of your heart, how then can one possibly find more heart with which to love another?' reads a statement from Heidi's husband Seal, 46.  

‘On Friday 9 October 2009 at 7.46pm, the answer to this question came in the form of our fourth child and second daughter.

Lou Sulola Samuel was born, and from the moment she looked into both of our eyes, it was endless love at first sight.'

Heidi, 36, is already mum to Johan, 2, and Henry, 4, with Seal, and Leni, 5, with her ex Flavio Briatore.

She recently applied to change her last name to Seal's surname Samuel.

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