Apple debuted a new commercial today for the iPhone 6 and 6 Plus, starring Jimmy Fallon and Justin Timberlake. Apple CEO Tim Cook introduced the spot at the company's iPhone and iWatch event today in Cupertino, though the celebrities' faces are never shown on screen. Instead, they play with the two phones and perform an acapella version of the 2001: A Space Odyssey theme. It's very hands-y.