Ashton Kutcher punks Zoe Saldana and Serena Williams, and enlists the help of Donald Faison to take on Zach Braff. #MTV #MTVVault #MTVClassic MTV Vault is the destination for all your favorite iconic MTV series - Cribs, Punk'd, Silent Library, and more! More from MTV: Official MTV Website: www.mtv.com/ Like MTV: www.facebook.com/MTV Follow MTV: twitter.com/MTV MTV Instagram: instagram.com/mtv