The first racket of the world, American tennis player Serena Williams took part in the television show David Letterman. The episode was posted on YouTube video hosting.

During the shooting on a city street, an athlete, dressed in a tight dress and stilettos, carefully repels several innings of the elderly presenter, and then Letterman and Williams compete in the force of impact on the ball. As a target, the host of the show chose a shop window. Letterman's ball did no harm to the glass, but Williams on the second attempt broke the window into smithereens. The audience was satisfied, there is no information about the reaction of the owner of the window display.

Williams took part in the Letterman show to advertise the last Grand Slam tournament of the season. The famous British actor Benedict Cumberbatch, who was poured ice-cold water in front of the camera five times, pursued more noble goals: with his extravagant act, the artist helped raise money for the fund to combat amyotrophic lateral sclerosis. The flash mob was attended by many celebrities and ordinary people around the world.