Singer Kelly Clarkson is keen to have another baby even though her first pregnancy was such hell, she had to be hospitalised.

The Since U Been Gone hitmaker became a first-time mum in June (14), when daughter River was born, and she's already thinking about baby number two even though her first experience as a mum-to-be was a real nightmare.

During an interview on BBC Radio 1, she says, "I was hospitalised. It was just kind of a bad pregnancy, so I had to take off way more time (from working) than normal."

However, little River has brought Clarkson and her husband Brandon Blackstock so much joy, she is already planning for a second child.

She tells Los Angeles DJ Valentine, "I had the worst pregnancy ever but I love her so much I want another one in, like, two years. I never thought I would say that while I was vomiting over the porcelain throne (toilet) for seven months."

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