Lily AllenLily Allen showed off her growing baby bump at the London premiere of 'Tamara Drewe' Monday. The 'Smile' singer, who is expecting her first child with boyfriend Sam Cooper, came out to support her mom, Alison Owen, who produced the flick, out October 8.

Although she looked fabulous, the singer admits she's still self-conscious about all the weight she's gained.

"I'm aware of the fact that I've put on a considerable amount of weight," she tweeted in August after she announced her pregnancy.

Allen, 25, and Cooper, 32, have been dating for a year. She told Britain's Sun newspaper, "It goes without saying we are both absolutely delighted." The star suffered a miscarriage two years ago.