PICS! Lily Allen & baby bump hit the stage

The heavily-pregnant star joined Professor Green on-stage for a surprise performance in London last night

Lily Allen and baby bump hit the stage - London, Koko, pregnant, heavily, blooming, Professor Green, see, pics, pictures, performs, performance, sings, celebrity, news, Marie Claire
Lily Allen and baby bump hit the stage - London, Koko, pregnant, heavily, blooming, Professor Green, see, pics, pictures, performs, performance, sings, celebrity, news, Marie Claire
(Image credit: Rex Features)

The heavily-pregnant star joined Professor Green on-stage for a surprise performance in London last night

She should be resting at home with her feet up, but a heavily-pregnant Lily Allen surprised gig-goers last night, by joining Professor Green on-stage in London.

SEE MORE STYLISH CELEBRITY BABY BUMPS HERE!

But clearly, Lily isn't letting her pregnancy slow her down...

Onlookers at Koko in Camden were stunned when the mum-to-be took to the stage with her burgeoning baby bump, for an impromptu duet of their hit single, Just Be Good to Green.

Lily Allen and baby bump hit the stage - London, Koko, pregnant, heavily, blooming, Professor Green, see, pics, pictures, performs, performance, sings, celebrity, news, Marie Claire

Having kept a relatively low profile of late, Lily's five-month bump was looking a great deal larger than when she was last spotted gracing the front rows during London Fashion Week.

Lily Allen and baby bump hit the stage - London, Koko, pregnant, heavily, blooming, Professor Green, see, pics, pictures, performs, performance, sings, celebrity, news, Marie Claire

And proving she's not one to go for the more traditional maternity wear, the blooming star hit the stage in a metallic empire-line minidress, leopard print cardigan and impossibly high heels.

Lily Allen and baby bump hit the stage - London, Koko, pregnant, heavily, blooming, Professor Green, see, pics, pictures, performs, performance, sings, celebrity, news, Marie Claire

The 25-year-old, who is expecting a boy with beau Sam Cooper, has admitted to having a 'really stupid list' of baby names.

'The whole thing became a lot more real to me when I found out it was a boy,' she said in a recent interview.

'You start to think of names, and then you can go shopping, and it all feels like it's happening.

Lily Allen and baby bump hit the stage - London, Koko, pregnant, heavily, blooming, Professor Green, see, pics, pictures, performs, performance, sings, celebrity, news, Marie Claire

'I've got a really stupid list of names, but I'm not going to show you. But, no, we probably won't [use it] - I think Sam is way too straight and traditional for that sort of thing.'

SEE MORE STYLISH CELEBRITY BABY BUMPS HERE!

LILY ALLEN'S STYLE HIGHS & LOWS

The leading destination for fashion, beauty, shopping and finger-on-the-pulse views on the latest issues. Marie Claire's travel content helps you delight in discovering new destinations around the globe, offering a unique – and sometimes unchartered – travel experience. From new hotel openings to the destinations tipped to take over our travel calendars, this iconic name has it covered.