Global superstar Beyoncé has finally unveiled a photograph of her baby daughter, Blue Ivy, that shows her face entirely.

The picture, which is a screenshot taken from her forthcoming documentary, shows Beyoncé holding Blue Ivy, who was born in January 2012, and gazing at her adoringly while both mother and baby are dressed down in white outfits.

The documentary, entitled 'Life Is But A Dream', will air tomorrow night (February 16) on HBO at 9pm in the USA and will see Beyoncé discuss her marriage with rapper Jay-Z, suffering a miscarriage and her incredible career.

She also recently explained that she had to obtain permission from both her mother and Jay-Z before she began working on the revealing programme: "I had to get the approval of my mother and Jay-Z. After giving birth I felt like a new woman I felt so much more brave… Mystique is important to me, but at some point it’s time and I’m ready.”

Watch a teaser clip of an interview she did with Oprah Winfrey earlier this week here: