Radiant Liv Tyler steps out for first time since announcing pregnancy

Liv Tyler stole the show on her first outing since announcing her third pregnancy, showing off her shapely legs in a black gown with a thigh-high slit at the Critics Choice Awards. The radiant mama-to-be was congratulated by famous friends Justin Theroux, her The Leftovers co-star, and Lord of the Rings pal Orlando Bloom.

TAP TO VIEW GALLERYLiv Tyler looks thrilled to share her pregnancy news with friends and fans.

Liv, 38, looked sensational in figure-hugging navy gown that was slashed to the thigh and backless, with her long dark hair held to one side by diamante slides. Finishing off the whole effect was the impressive diamond sparkler partner Dave Gardner gave her on their engagement during her last pregnancy.

One of the first to congratulate her was co-star Justin Theroux.

Their son is just 11 months old so Liv has wasted no time in expanding their family. As well as baby Sailor, the duo are also parents to Gray, Dave's eight-year-old from his previous marriage and Milo, 11, her son with ex-husband Royston Langdon.

She also caught up with old friend Orlando Bloom.

On Sunday, the beautiful 38-year-old actress shared her excitement with fans, posting an Instagram picture of herself all glammed up on the way to the awards show, disarmingly referring to herself as "a total nerd face."

Read More: See all the looks from the Critics Choice Awards red carpet

Liv announced her pregnancy on Jan. 9, telling followers "the stork is visiting us again!" Alongside a picture of her cradling her belly, she added, "I am growing another Tyler Gardner in my belly. Our family is growing! So grateful @davegardner I love you."

Their love story began in summer 2014 when they were introduced by mutual friend Kate Moss and the couple have been inseparable ever since.

Football agent Dave is pretty well-connected in his own right as his best friend is David Beckham. He recently accompanied the sports star on his global fundraising football tour to some of the most remote corners of the planet and David is Sailor's godfather.

The happy parents haven't revealed the gender of their unborn child but for now Liv is enjoying being surrounded by boys. She recently published a picture of their three children, adding the caption: "Boys, boys, boys", adding lots of heart emojis.

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