Lily Allen Baby Bump Picture

Lily Allen, the 25-year-old singer who is expecting her first child with boyfriend Sam Cooper, debuted her growing baby bump at the UK premiere of Tamara Drewe in London Monday (September 6).

Pregnant Lily Allen attended the London premiere to support her mother Alison Owen, who produced the film. "It's ELLE magazine's 25th birthday issue this month. There's a party to celebrate but I can't go. Sorry ELLE :(. It's the premiere for my mum's film Tamara Drewe, so I'm going there instead, " she tweeted before the premier.

Lily announced she was expecting her first child last month after suffering a miscarriage in January 2008. She is due to give birth early next year.