Beautifully effective in its brevity, Nike's "Just Do It" slogan turns 25 this year, and the brand's new "Possibilities" campaign redefines the iconic message. Directed by Nicolai Fuglsig and narrated by actor Bradley Cooper, the clip features a quartet of world-class Nike athletes (reigning NBA MVP LeBron James, world no. 1 tennis player Serena Williams, premier Spanish footballer Gerard Pique and super middleweight boxing champ Andre Ward) and one Starfleet captain (actor Chris Pine). The underlying message behind "Possibilities" is to take "Just Do It" to another level. Viewers can achieve their own individual "possibilities" through Nike+, highlighted by the "Challenges" feature on the Nike+ Running app, allowing runners to set a distance goal and invite Nike+ friends in a race to the virtual finish line. Check out the video below, and go here for more information on Nike's Just Do It campaign.