The commercial - named 'Take the Stage' - is part of a new campaign from the Team GB Olympic kit suppliers.
Wretch 32 provides the music for the clip, which also sees cameos from sporting stars including Kevin Pietersen and Daley Thompson.
The advert saw its debut during tonight's episode of Britain's Got Talent on ITV1.
Example, cyclist Victoria Pendleton and diver Tom Daley also appear in the promo.
Beckham is seen reading a copy of The Sun while reading about a new footballer dubbed the 'new Beckham'.
Wretch 32 recently told Digital Spy that his next album will be "even better" than his last LP.
David Beckham also recently starred in a new commercial campaign for Burger King.
Watch the Adidas 'Take the Stage' advert below: