Couple excitedly release blue balloons as they announce they are having a boy

In their baby shower invitations they hinted they were going to reveal the sex of their soon-to-be little boy and girl at the party to celebrate the impending arrival.

And Giuliana and Bill Rancic used a creative way to let their friends know they were expecting a son at their guessing-themed Beverly Hills bash over the weekend.

The couple released blue balloons out of a giant box during the fun-filled event.

 Looking like a ray of sunshine in a bright yellow dress, the 36-year-old E! presenter jumped for joy as they made the big reveal.

'It was great to finally share it with everyone,' she told Life & Style whilst trying to hold back tears.

'I've always wanted a little Bill - my husband is the most gorgeous guy in the world and I want our baby to look exactly like him.'

During the party - which was organised by celebrity-planner-to-the-stars Mindy Weiss - guests feasted on ribs and sliders and sipped on Nicolas Feuillatte champagne and OneHope wine.

 Colourful balloons, flowers and cabanas were dotted around the grounds of the mansion, reflecting the couple's always bright and optimistic outlook on life.

Continuing on with the guessing theme of the party, the pair even cut into a pink and blue cake, revealing a turquoise sponge inside.

'The shower is exactly what I envisioned,' said Giuliana.

The TV host said she was relieved to be finally focusing on her baby, and that she was already feeling a strong connection to her unborn son.

For more on the couple's baby shower see inside this week's edition of Life & Style.