Lily Allen: Baby Bump Watch!

Expectant mom Lily Allen shows off her growing baby bump at the UK film premiere of the Tamara Drewe in aid of The Princes Foundation at Odeon Leicester Square on September 6, 2010 in London, England.

WATCH: ‘Tamara Drewe’ Trailer

The 25-year-old singing sensation came out to support her mom, Alison Owen, who produced the flick, out October 8. Gemma Arterton, Dominic Cooper, and Luke Evans star.

“Its ELLE magazine’s 25th birthday issue this month,” Lily tweeted before the premiere. “There’s a party tonight 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.”

10+ pictures inside of Lily Allen‘s baby bump…