Beyonce has unveiled her new song 'Grown Woman' in her latest advert for Pepsi.

The feisty singer is first seen reaching for a cold can of the fizzy pop in the promotional video, called 'Mirrors', before she begins a dance-off with former versions of herself to the heavy-beat track.

Some of Beyonce's past personas seen in the clip include her denim shorts and white vest look from 'Crazy In Love', her hot pink two-piece from the infamous Destiny's Child video 'Bootylicious' and her iconic leotard and dance routine from 'Single Ladies (Put a Ring on It)'.

After battling it out, the mirrors surrounding her break and Beyonce creates a brand new dance inspired by her past moves.

The star - who helps promote the brand's 'Live For Now' motto as well as her own song - found it an ''emotional'' journey and is proud of what she has accomplished over the years.

She explained: ''I had so much fun collaborating on this campaign with Pepsi. I got to re-live some of my favourite past characters and looks.

''It was the first time I saw those costumes in years and it was very emotional. I'm proud of those moments and they all connect in some way and have helped me evolve into who I am today.''