Every person she passes on the way sings a line from "I Feel Pretty", a song performed by the character Maria in the second act of the stage musical "West Side Story".

She arrives at the game, where fellow players, reporters, camera crew, the ball boys and girls, announcers, and umpire sing the chorus along with the crowd, until silenced by a powerful return ace from Sharapova.

[1] In the early years of the partnership, campaigns were focused almost exclusively at male demographics, leaving the market for women's sportswear to rivals such as Reebok and LA Gear.

[2] Despite more successful efforts in the 1990s, such as the "If You Let Me Play" campaign, Nike decided in 1997 to briefly reassign the section of its marketing budget given to female-oriented promotion from Wieden+Kennedy to rival firm Goodby, Silverstein & Partners.

Goodby's brief tenure as lead agency for this area of Nike's marketing saw it reposition the brand, eschewing the use of celebrity athletes in favour of ordinary women.

Wieden+Kennedy signed up director Ivan Zachariáš, known for his award-winning[8] work on Land Rover's "Born Free" campaign and the Stella Artois pieces Plague and Pilot, to direct Pretty.

[9] Pretty debuted on U.S. television on Sunday, August 20, 2006, in a commercial break during Fox's annual Teen Choice Awards ceremony, a week before the start of the 2006 U.S.

[2][4] The piece was also critically successful, receiving awards from the advertising and television industries, including two Cannes Gold Lions in the categories of Film and Best Use of Music.