New mum Tamsin Egerton shows off her post-baby body in plunging blue maxi dress as she makes first red carpet appearance since giving birth to a daughter

PUBLISHED: 20:55, 19 June 2016 | UPDATED: 21:48, 19 June 2016

Parenting seems to be Tamsin Egerton's best role yet.

And the stunning actress certainly looked well suited to motherhood as she made her first official red carpet appearance since their birth of her daughter earlier this year.

The St. Trinian's star headed to the Men's Singles Final on day seven of the Aegon Championships in London on Sunday.

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Mamma mia! Tamsin Egerton certainly looked well suited to motherhood as she made her first official red carpet appearance since their birth of her daughter earlier this year

Since welcoming her first child with boyfriend Josh Hartnett over five months ago, the beauty has kept a low profile, but turned heads as she rocked up to the Moet & Chandon room at the event.

Showing off her sensational post-baby body, the blonde beauty slipped into a plunging blue maxi dress.

Striking a pose for the cameras, the star showed just a hint of cleavage in the ruffled sleeve number, while keeping her light locks in waves and her make-up simple.

Her appearance comes after Pearl Harbour hunk Josh spoke on US TV about how parenthood had changed his life.

Day off: The St. Trinian's star headed to the Men's Singles Final on day seven of the Aegon Championships in London on Sunday

Back on the scene: Since welcoming her first child with boyfriend Josh Hartnett over five months ago, the beauty has kept a low profile, but turned heads as she rocked up to the Moet & Chandon room at the event

Dressed up to the maxi: Showing off her sensational post-baby body, the blonde beauty slipped into a plunging blue maxi dress

He told the Live! With Kelly and Michael show recently that it had put 'everything into perspective'.

He said: 'I mean, your ego melts away when you have a new kid. Your heart kind of leaves your body and you give it permission to walk around with someone else for a while.

'It’s really terrifying but it’s beautiful. I love it more than anything. I wish I would have started it earlier. But I’m so glad that she is the one I’m raising.'

After admitting that he's been very tired of late, Josh gushed: 'The best moments are when you have those individual moments alone in the middle of the night.'

Josh and Tamsin were first seen with their baby days after welcoming the child last December, though a name for the child is as-yet unknown.

Cheers to that! Striking a pose for the cameras, the star showed just a hint of cleavage in the ruffled sleeve number, while keeping her light locks in waves and her make-up simple

New role: Tamsin gave birth to a daughter over five months ago at St. Mary's hospital in London

As well as taking on the duties of a parent together, the couple are also sharing the screen again in 2016.

The actors star alongside each other in epic adventure movie Time Traveller, which was released in the UK on Monday on DVD and VOD.

Written and directed by Academy Award-nominated filmmaker Roland Joffé, Time Traveller is a sweeping romantic adventure epic set across continents, history and time.