The 43-year-old actress let out a 'little yelp' when her agent called her on Thursday morning informing her of her Best Actress nomination for her role as a real-life survivor of the 2004 Indian Ocean tsunami in The Impossible.
Her awards recognition came on the same day her son Samuel, known as Kai, celebrated his fourth birthday and Naomi - who also has son Alexander 'Sasha', five, with her partner Liev Schreiber - is looking forward to them both celebrating with cake.
Honoured: Naomi Watts, pictured outside her apartment in New York on Friday, revealed she let out a 'little yelp' after learning of her best actress Golden Globe nomination
Double the joy: The happy news fell on the same day as Naomi's son Samuel Kai's fourth birthdaySpeaking on the Today Show, she said: 'It's my son's birthday today. He's upset that I made that yelp. I had to explain what it was. Mommy got good news. And he said, "It's my birthday."
'We're having cake after school. It's all about Kai today. I won't get to celebrate until this weekend.'
And the star stuck to her promise, as the whole family were later seen celebrating together with Kai in a festive red crown, and Naomi carrying a cake.
Naomi is just one of many actors to reveal how thrilled they are at their Golden Globe nominations.
Stop anStop and stair: The glamorous couple turned heads as they picked up their boys in New York - armed with cake
Brotherly love: Alexander and Samuel looked absolutely adorable in their winter clothing and hats
Birthday boy: Samuel, known as Kai, was excited to be turning four and even wore a festive hat
Thanking the Hollywood Foreign Press Association that organises the ceremony, she said: 'As an actor you look for roles that are rich, complicated, and that stretch you and this year I was blessed to find two.
'To have the chance to play them was a gift in itself and to then be acknowledged this way is icing on the cake. Thank you to the Hollywood Foreign Press!'
Now for her other role: The Australian actress was spotted in her casual attire playing the doting mother as husband Liev Schreiber bundled up their son Sasha to take him to school
Off they go: Liev and Sasha are on their way, both sitting comfortably on the actor's bike
Speaking about his Best Director, Best Screenplay and Best Motion Picture Drama nominations for Django Unchained, he said: 'It's very gratifying to get this many nominations from the HFPA for a film I worked so hard on and am so passionate about.
'I look forward to having fun at the Golden Globes with my castmates and fellow nominees.'
Movie star: Naomi pictured on Wednesday night in New York with her co-star Ewan McGregor at a screening of The Impossible
Real life tragedy: The film is based on the 2004 Indian Ocean tsunami
Fellow nominees: Silver Linings Playbook star Bradley Cooper was beaming as he went out for lunch in Los Angeles yesterday, while Homeland star Claire Danes also headed out for a meal in New York on Wednesday