March 08, 2013 at 07:24 PM EST

British singer-songwriter Jamie Cullum is a dad again. “On March 4th @sophiedahl gave birth to our second baby girl, Margot Cullum. She is healthy and gorgeous and we are completely thrilled,” he tweeted yesterday.  Their eldest daughter, Lyra, is two.

You may know Sophie Dahl because of her famous grandfather Roald.

The couple married in 2010.

Read more:

‘Buffy’ actress welcomes baby girl

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